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AVAYA Nortel Succession 1000


Avaya Solution & Interoperability Test Lab

Configuring Avaya Communication Manager for H.323 Signaling and IP Trunks with Nortel Succession 1000 – Issue 1.0

Abstract
These Application Notes present a sample configuration for a network comprised of an Avaya S8300 Media Server, Avaya G700 Media Gateway, and a Nortel Succession 1000. The focus is on the Avaya Communication Manager configuration for the H.323 signaling groups, IP trunk groups, and IP codec sets, and the corresponding Nortel Succession configuration of IP Peer Networking and Virtual Trunks. Using this configuration, Nortel digital telephones, Nortel IP Telephones, and Nortel IP Software Phones can call (and be called by) Avaya digital telephones, Avaya IP Telephones, and Avaya IP Softphones. Screens that describe the detailed status and communication paths of active calls are presented to reinforce the understanding of the configuration. These results should be applicable to other Avaya media servers and gateways.

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1. Introduction
These Application Notes present a sample configuration for a network comprised of an Avaya S8300 Media Server, Avaya G700 Media Gateway, and a Nortel Succession 1000. The focus is on the Avaya Communication Manager configuration for the H.323 signaling groups, IP trunk groups, and IP codec sets, and the corresponding Nortel Succession configuration of IP Peer Networking and Virtual Trunks. Using this configuration, Nortel digital telephones, Nortel IP Telephones, and Nortel IP Software Phones can call (and be called by) Avaya digital telephones, Avaya IP Telephones, and Avaya IP Softphones. Screens that describe the detailed status and communication paths of active calls are presented to reinforce the understanding of the configuration. These results should be applicable to other Avaya media servers and gateways. Figure 1 depicts the network used to verify these Application Notes. The data network is kept simple to focus on the relevant server and H.323 IP Trunk configuration. Although the Nortel BCM is not the subject of these Application Notes, it is included in the configuration below the line in Figure 1. The network below the line is identical to the configuration presented in the previously published Application Notes [3] describing H.323 IP Trunks between Avaya Communication Manager and Nortel BCM.
192.168.1.30 Node ID 271 Node IP 192.168.1.33 192.168.1.31
T L A N

192.168.0.3 192.168.0.1

Signaling Server Call Server

Two Nortel i2002 Two Nortel i2004 IP Telephones IP Telephones x53506 192.168.1.103 x53504 192.168.1.104 x53507 192.168.1.106 x53505 192.168.1.105

192.168.0.4 Media Gateway

ELAN

Media Card (NTV001BA) DTI/TMDI (ISDN-PRI) Digital Line Card Analog Line Card SSC Card (NTDK20HA) Call Pilot (NTRH30AA) Nortel Succession 1000 System

192.168.1.1 2.2.10.1
Four Nortel Digital Telephones x53500 - x53503

Avaya P333R

Media Gateway Expansion

Avaya 4620 IP Telephone x43210 2.2.10.201

192.168.1.32 Avaya P333T

Nortel i2050 Software Phone x53509, 192.168.1.6

Avaya S8300 Media Server 2.2.10.78

Avaya 6402D x43000

Nortel BCM 200 2.2.10.88

Avaya G700 Media Gateway, Media Processor "VoIP v0": 2.2.10.79 Media Gateway Processor: 2.2.10.77

Avaya 4624 IP Telephone x43209 2.2.10.202

Avaya IP Softphone 2.2.10.215

Nortel i2050 Software Phone x53209 2.2.10.5

Nortel T7208 Nortel i2004 Digital Telephone IP Telephone x53000 x53210 2.2.10.103

Figure 1: Network Overview
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A five digit Uniform Dial Plan (UDP) is used to facilitate inter-system dialing. Unique ranges of extensions are associated with the Nortel Succession (535xx) and the Avaya S8300 Media Server (43xxx). The Avaya S8300 Media Server will route 535xx extensions to the Nortel Succession over an H.323 signaling group and IP trunk group, whose configuration is fully described. The Nortel Succession will in turn route 43xxx numbers to the Avaya S8300 Media Server. The Nortel Succession configuration is presented, inclusive of the Coordinated Dial Plan (CDP) feature that is similar to the Avaya UDP feature. The Avaya UDP configuration steps are not described, since there is no new routing consideration introduced by the presence of the Nortel Succession in the network. All servers are configured to pass 5 digit extensions over the IP Trunks (i.e., five digits are included in the Called Party Number Information Element in the Q.931 SETUP message).

2. Equipment and Software Validated
The following equipment and software were used for this sample configuration. For Avaya Communication Manager 2.1.1 (load 414.1), patch 7689 is required for the interoperability described in these Application Notes. Special Application SA8507 must also be enabled in the Avaya Communication Manager license file. Network Component Avaya S8300 Media Server running Avaya Communication Manager Avaya G700 Media Gateway Processor Avaya G700 VoIP Avaya 4620 IP Telephone Avaya IP Softphone Nortel Succession Signaling Server Nortel Succession Call Server (NTDK20HA) Nortel Succession Voice Gateway Media Card (Single Slot 24 port NTV001BA card) Nortel i2002 IP Telephone (Registered to Succession) Nortel i2004 IP Telephone (Registered to Succession) Nortel i2050 Software Phone (Registered to Succession) Nortel M3904 and M3904 Digital Telephones Nortel Business Communications Manager (BCM 200) Version Information 2.1.1, Load 414.1 + Patch 7689, with SA8507 turned on 22.16.0 Firmware V42 2.0 5.1.4.6 SSE 2.11.3 Version 2121 Release 3 Firmware Release 6.7 0603B59 0603B59 1.4.0 Build 346 N/A BCM Release 3.0, specifically UM-111302-BCM30-RC2.2, UNISTIM Terminal Proxy Server version 30.120.20.21 Type MSC 1A \ HW Revision 3 C502B41

Nortel BCM Media Services Card (MSC) Nortel i2004 IP Telephone (Registered to BCM)

Table 1 – Equipment Version Information

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3. Conventions
Native Avaya Communication Manager interfaces have been used to describe the configuration. Graphical and wizard interfaces are also available as an alternative. For example, additional information on the Avaya Installation Wizard and other wizards can be found at http://support.avaya.com/avayaiw/. In these Application Notes, Avaya Communication Manager administration screens are shown with a gray shaded background. These administration screens are also referred to as “SAT” (System Access Terminal) screens in this document. In many instances, the original screens have been edited for brevity in presentation. Commands and fields requiring user input or special attention are highlighted in bold. Nortel Succession command line interface (CLI) screen captures are presented without background shading. It is assumed that the appropriate license files have been installed on all products, and that login and password credentials for all products are available to the reader.

4. Configuring Avaya Communication Manager on the Avaya S8300 Media Server
This section presents configuration steps for the Avaya S8300 Media Server. Before proceeding, use the command “display system-parameters special-applications” and page forward to Page 4 to verify that Special Application SA8507 is enabled. SA8507 must be enabled to achieve the interoperability documented in these Application Notes. If SA8507 is not enabled, contact an authorized Avaya sales representative.
display system-parameters special-applications SPECIAL APPLICATIONS (SA8481) - Replace Calling Party Number with ASAI ANI? (SA8500) - Expanded UUI Display Information? (SA8506) - Altura Interoperability (FIPN)? (SA8507) - H245 Support With Other Vendors? (SA8508) - Multiple Emergency Access Codes? (SA8510) - NTT Mapping of ISDN Called-Party Subaddress IE? (SA8517) - Authorization Code By COR? (SA8518) - Automatic Callback with Called Party Queuing? (SA8520) - Hoteling Application for IP Terminals? (SA8558) - Increase Automatic MWI & VuStats (S8700 only)? (SA8567) - PHS X-Station Mobility over IP? (SA8569) - No Service Observing Tone Heard by Agent? (SA8573) - Call xfer via ASAI on CAS Main? (SA8582) - PSA Location and Display Enhancements? (SA8587) - Networked PSA via QSIG Diversion? (SA8589) - Background BSR Polling? (SA8601) - Two-Digit AUX Reason Codes? (SA8621) - SCH Feature Enhancements? (SA8622) - Enhanced Call Pickup Alerting? Page n n n y n n n n n n n n n n n n n n n 4 of 5

Section 4.1 shows aspects of the configuration that are not unique to configurations involving Nortel Succession. The standard configuration of the G700 Media Gateway and S8300 Media Server are omitted; product documentation and other available Application Notes cover these
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procedures. There are no special G700 Media Gateway considerations due to the presence of the Nortel Succession in this configuration. A reader experienced with the Avaya S8300 Media Server may wish to skip forward to Section 4.2, which illustrates the parameters used in the administration of the H.323 signaling group, IP trunk group, and IP codec sets used to connect with Nortel Succession.

4.1. Common Avaya Communication Manager VoIP Concepts
The “list ip-interface” command illustrates the IP configuration of the S8300 Media Server. The IP address and gateway address of the “PROCR” interface are configured using the S8300 Media Server Web utilities. The “PROCR” interface will be used as the near-end of the H.323 signaling group to the Nortel Succession. Avaya IP Telephones also register for service with this interface.
list ip-interface IP INTERFACES ON Type -- ---y PROCR Slot ---Net Code Sfx Node Name Subnet Mask Gateway Address Rgn VLAN ---- --- --------------- --------------- --------------- --- ---2.2.10.78 255.255.255.0 2.2.10.1 1

The “display media-gateway 1” screen shown below illustrates aspects of the G700 Media Gateway configuration in Figure 1. The “IP Address” field is a display only field that is not assigned via the SAT. The “IP Address” field will contain the address of the G700 Media Gateway processor, after it has registered with the Avaya S8300 Media Server as its controller. As noted in Figure 1, the IP address associated with the VoIP Media Processor “VoIP v0” on the G700 Media Gateway is 2.2.10.79. Note the use of Network Region 1 for the Avaya devices.
display media-gateway 1 Number: Type: Name: Serial No: Network Region: Registered? Slot V1: V2: V3: V4: V8: V9: MEDIA GATEWAY 1 IP Address: g700 FW Version/HW Vintage: Nortel-Interop-Test MAC Address: 04J239801972 Encrypt Link? 1 Location: y Controller IP Address: Site Data: Module Type Name S8300 ICC MM MM712 DCP MM 2 .2 .10 .77 22 .16 .0 /3 00:04:0d:51:8b:0d y 1 2 .2 .10 .78

gateway-announcements

ANN VMM

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4.2. Configuration Related to Nortel Succession Interoperability
This section focuses on the parameter settings for the H.323 signaling group, IP trunk group, and IP codec sets used to connect with Nortel Succession. The following illustrates a subset of the “change node-names ip” screen that maps logical names to IP addresses. These node names are presented because they will appear in other screens, such as the screen defining the H.323 signaling group.
change node-names ip Name G700-VoIP-V0 Nortel-BCM Succ-media-card Succ-sig-svr default procr succ-node-ip IP NODE NAMES IP Address Name 2 .2 .10 .79 2 .2 .10 .88 192.168.1 .31 192.168.1 .30 0 .0 .0 .0 2 .2 .10 .78 192.168.1 .33 Page 1 of 1

IP Address . . . . . . . . . . . . . . . . . . . . .

Signaling Group 7 will be created using the command “add signaling-group 7” to establish an H.323 signaling link between the Avaya S8300 Media Server and the Nortel Succession. The signaling group number is not relevant; use any available number.
add signaling-group 7 Group Number: 7 SIGNALING Group Type: Remote Office? SBS? GROUP h.323 n n Page 1 of 5

Max number of NCA TSC: 0 Max number of CA TSC: 0 Trunk Group for NCA TSC:

Trunk Group for Channel Selection: Supplementary Service Protocol: a T303 Timer(sec): 10 Near-end Node Name: procr Near-end Listen Port: 1720 LRQ Required? n RRQ Required? n Media Encryption? n DTMF over IP: out-of-band Far-end Node Name: succ-node-ip Far-end Listen Port: 1720 Far-end Network Region: 4 Calls Share IP Signaling Connection? n H245 Control Addr On FACility? n Bypass If IP Threshold Exceeded? n Direct IP-IP Audio Connections? n IP Audio Hairpinning? n Interworking Message: PROGress

The S8300 “procr” is the near-end of the signaling group. The far-end must be set to the Succession Node IP address (192.168.1.33), and not the IP address configured for the Succession Signaling Server (192.168.1.30). Retain the default near-end listen port (1720) and enter 1720 as the far-end listen port. The “Calls Share IP Signaling Connection” and the “Direct IP-IP Audio Connections?” fields must remain set to the default “n” setting, or interoperability problems will be experienced. The “IP Audio Hairpinning” field is also intentionally left at the default of “n”.

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In general, the “Far-end Network Region” field can be left blank, or it can be populated with a network region number. In these Application Notes, the “Far-end Network Region” field is populated to illustrate how different audio codecs can be used for intra-region calls among the Avaya devices, and inter-region calls over the IP Trunk to the Nortel Succession. Since “Direct IP-IP Audio Connections”, also referred to as “shuffling”, must remain disabled for the signaling group, calls between Avaya IP Telephones and Nortel devices will require the resources of the G700 media processors. The approach described below allows connections among Avaya IP devices in Network Region 1 to use G.711MU while media connections across the IP Trunk to Nortel IP devices will use G729AB. This may be an appropriate configuration in environments where the two servers are separated by a WAN, and it is desirable to conserve bandwidth over the WAN. (An alternative showing G.711MU over the IP Trunk is shown in Section 7). For Signaling Group 7, the “Far-end Network Region” field has been set to 4. Avaya Communication Manager will treat calls using this signaling group as calls between Network Region 1 and Network Region 4. The signaling group created with the preceding screen will be associated with Trunk Group 7 in a subsequent step. The “ip-network-region” and “ip codec set” screens are shown below to complete the example of using different codecs for intra-region (Avaya-Avaya) and inter-region (Avaya-Nortel) calls. For connections within region 1, the “Codec Set” field shown in bold on the first page of the form determines the codec set used.
change ip-network-region 1 IP NETWORK REGION Region: 1 Location: 1 Name: G700/S8300 AUDIO PARAMETERS Codec Set: 1 UDP Port Min: 2048 UDP Port Max: 3028 Home Domain: Intra-region IP-IP Direct Audio: yes Inter-region IP-IP Direct Audio: yes IP Audio Hairpinning? y RTCP Reporting Enabled? y RTCP MONITOR SERVER PARAMETERS Use Default Server Parameters? y Page 1 of 19

DIFFSERV/TOS PARAMETERS Call Control PHB Value: 34 Audio PHB Value: 46 802.1P/Q PARAMETERS Call Control 802.1p Priority: 7 Audio 802.1p Priority: 6 H.323 IP ENDPOINTS H.323 Link Bounce Recovery? y Idle Traffic Interval (sec): 20 Keep-Alive Interval (sec): 5 Keep-Alive Count: 5

AUDIO RESOURCE RESERVATION PARAMETERS RSVP Enabled? n

Navigate to Page 3. The codec set configured for calls between Region 1 and Region 4 will be Codec Set 4, as shown by the bolded row in the following screen. In this example, no Call Admission Control bandwidth limits are configured for inter-region connections.

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change ip-network-region 1 Page 3 of Inter Network Region Connection Management src dst codec direct Dynamic CAC rgn rgn set WAN WAN-BW-limits Intervening-regions Gateway 1 1 1 1 2 2 y :NoLimit 1 3 3 y :NoLimit 1 4 4 y :NoLimit ……………………………………………………………………………

19

Calls among the Avaya IP devices within Region 1 will use G.711MU with 2 Frames Per Packet. This represents the default configuration.
change ip-codec-set 1 IP Codec Set Codec Set: 1 Audio Silence Frames Codec Suppression Per Pkt 1: G.711MU n 2 2: 3: 4: 5: 6: 7: Media Encryption 1: none …………………………………………………………………………… Packet Size(ms) 20 Page 1 of 2

Calls to and from the Nortel Succession use Codec Set 4 because Signaling Group 7 to the Nortel Succession specifies the “Far-end Network Region” field to be Region 4, and calls between Region 1 and Region 4 are configured to use Codec Set 4. For interoperability for calls requiring the Nortel Succession Media Card, such as calls over the IP Trunk to Nortel digital telephones, the audio codec must be set to G.729B or G.729AB (i.e., not G.729, nor G.729A).
change ip-codec-set 4 IP Codec Set Codec Set: 4 Audio Silence Frames Codec Suppression Per Pkt 1: G.729AB n 2 2: 3: 4: 5: 6: 7: Media Encryption 1: none …………………………………………………………………………… Packet Size(ms) 20 Page 1 of 2

Although the configuration presented here shows how to achieve G.729AB across the IP Trunk, note that G.711MU was also verified successfully, as shown in Section 7.

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Next, a trunk group is established using the command “add trunk-group” for calls to and from the Nortel Succession. Most fields can be left at their defaults. Data has been entered in the fields shown in bold.
add trunk-group 7 Group Number: Group Name: Direction: Dial Access? Queue Length: Service Type: TRUNK GROUP Group Type: COR: Outgoing Display? Busy Threshold: Page 1 of 22

7 isdn CDR Reports: y To Succession 1 TN: 1 TAC: 107 two-way n Carrier Medium: IP n 255 Night Service: 0 tie Auth Code? n TestCall ITC: rest Far End Test Line No: TestCall BCC: 4 TRUNK PARAMETERS Codeset to Send Display: 6 Codeset to Send National IEs: 6 Max Message Size to Send: 260 Charge Advice: none Supplementary Service Protocol: a Digit Handling (in/out): enbloc/enbloc Trunk Hunt: cyclical Digital Loss Group: 18 Incoming Calling Number - Delete: Insert: Format: unk-unk Bit Rate: 1200 Synchronization: async Duplex: full Disconnect Supervision - In? y Out? n Answer Supervision Timeout: 0

Navigate to Page 2. The “Send Calling Number” field can be set to “y” to allow the calling party number to be included in calls from Avaya to Nortel, subject to the usual rules governing the inclusion and content of this information (i.e., not unique to Nortel, and not presented here). Although the “Send Connected Number” field is shown set to “y”, the Nortel Succession software tested does not display the connected number on a display-equipped telephone.
add trunk-group 7 TRUNK FEATURES ACA Assignment? n Page Measured: Internal Alert? Data Restriction? Send Name: none n n y 2 of 22

Wideband Support? n Maintenance Tests? y NCA-TSC Trunk Member: Send Calling Number: y

Used for DCS? n Suppress # Outpulsing? n Format: private Outgoing Channel ID Encoding: preferred UUI IE Treatment: service-provider Replace Restricted Numbers? Replace Unavailable Numbers? Send Connected Number: Modify Tandem Calling Number? Send UUI IE? Send UCID? Send Codeset 6/7 LAI IE? SBS? y n y n n n y n

Network (Japan) Needs Connect Before Disconnect? n

Navigate to Page 6, and add the trunk members, as shown below. The keyword “ip” is entered in the “Port” field, and the signaling group number is entered in the “Sig Grp” field. The number of rows or trunk members added here will determine the number of simultaneous calls allowed on the IP trunk group linking the Avaya S8300 Media Server with the Nortel Succession. After this

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form is submitted, Avaya Communication Manager will assign a trunk number as a port identifier (e.g., T00007 and T00008 in this case, as seen in the verification screens in Section 7.)
add trunk-group 1 TRUNK GROUP GROUP MEMBER ASSIGNMENTS Port 1: ip 2: ip ………………… Code Sfx Name Page 6 of 22

Administered Members (min/max): Total Administered Members: Night Sig Grp 7 7

0/0 0

Next, the signaling group is associated with the IP trunk group. Using the command “change signaling-group 7”, enter the number 7 in the “Trunk Group for Channel Selection” field.
change signaling-group 7 Group Number: 7 SIGNALING Group Type: Remote Office? SBS? GROUP h.323 n n Page 1 of 5

Max number of NCA TSC: 0 Max number of CA TSC: 0 Trunk Group for NCA TSC:

Trunk Group for Channel Selection: 7 Supplementary Service Protocol: a T303 Timer(sec): 10 Near-end Node Name: procr Near-end Listen Port: 1720 LRQ Required? n RRQ Required? n Media Encryption? n DTMF over IP: out-of-band Far-end Node Name: succ-node-ip Far-end Listen Port: 1720 Far-end Network Region: 4 Calls Share IP Signaling Connection? n H245 Control Addr On FACility? n Bypass If IP Threshold Exceeded? n Direct IP-IP Audio Connections? n IP Audio Hairpinning? n Interworking Message: PROGress

Traditional Avaya UDP call routing is established such that dialed number 535xx is routed to a route pattern containing Trunk Group 7, passing the dialed 535xx digits to the Nortel Succession. The command “save translation” must be entered to save the configuration.

5. Nortel Succession Configuration
This section illustrates the relevant Nortel configuration used to verify these Application Notes. Please consult the Nortel Networks product documentation referenced in Section 9 for additional information. The documents “IP Peer Networking” [1] and “Signaling Server: Installation and Configuration” [2] are especially relevant to these Application Notes. IP Peer Networking can use an H.323 Gatekeeper to manage a numbering plan for the network. For the simple network depicted in Figure 1, the numbering plan associated with the Avaya devices has the form 43xxx. The Succession Call Server can be configured to steer calls of the form 43xxx to an IP Virtual Trunk using the Coordinated Dial Plan (CDP) feature. The
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Succession Gatekeeper, co-resident on the Succession Signaling Server in this configuration, can similarly be configured to direct dialed digits of the form 43xxx to the Avaya S8300 Media Server. In these Application Notes, the Avaya S8300 Media Server is configured as a “non-RAS endpoint” in the Nortel Succession Gatekeeper. An alternative would be to configure Avaya Communication Manager as a zone gatekeeper, and the configuration differences for this alternative are briefly summarized in Section 5.12. The Succession Signaling Server provides the H.323 Gateway function for “Virtual Trunks” that correspond logically to the Avaya H.323 IP trunk configuration described in Section 4.2. The Succession Signaling Server also provides the “Terminal Proxy Server” (TPS) function for the Nortel IP Telephones associated with the Succession. Finally, the Signaling Server includes a web interface called “Element Manager” for managing the configuration of the Signaling Server and Gatekeeper. The configuration steps below follow the order specified by the procedures in Reference [1]. Configuration will be performed using the “Element Manager”, accessed via a web browser.

5.1. Launch Element Manager and Log in
In the configuration depicted in Figure 1, the Nortel Node IP address is 192.168.1.33. A web browser can connect to http://192.168.1.33 as shown below. The “CS IP Address” (in this case, 192.168.0.1) is the private ELAN IP Address of the Succession Call Server, and should be automatically populated from prior basic system configuration. Click the Login button.

.

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The System Information page is displayed as shown below. Note that this Succession Signaling Server is the “Primary Gatekeeper” and has the role of “Leader”. The left side of this screen will be referred to as the Navigation Tree.

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5.2. Configure the Customer Data Block
Select Configuration Customer Explorer from the Navigation Tree.

Click the Edit button associated with the customer.

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Click Feature Packages. Scroll down the resulting screen and select Integrated Services Digital Network Package: 145. Check the Integrated Services Digital Network (ISDN) checkbox, as shown below.

Scroll to the bottom of the page and click the Submit button.

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5.3. Configure the D-Channel
Select Configuration D-Channel from the Navigation Tree. The resulting screen will depend on whether any D-Channels have been previously configured. In the screen capture below, D-Channels 3 and 11 have been previously configured. D-Channel 11 is associated with the IP trunk to the Avaya system. The text below is written as if the D-Channel had not been previously configured.

In the Choose a D-Channel Number drop-down, select an unused D-Channel number and click the to Add button.

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With reference to the prior screen, from the D-channel Card Type (CTYP) drop-down field, select D-Channel is over IP (DCIP). From the User (USR) drop-down, select Integrated Services Signaling Link Dedicated (ISLD). From the Interface type for D-channel (IFC) drop-down, select Meridian Meridian1 (SL1). Optionally, to set the “Remote Capabilities”, click on Basic options (BSCOPT) followed by the Edit button next to Remote Capabilities (RCAP).

A screen allowing parameters such as Network Name Display method is displayed. Scroll down and check the box for Network name Display method 2 (ND2) (not pictured). Click the Return – Remote Capabilities button at the bottom of the page, followed by the Submit button to save the changes.

5.4. Configure Zones
Zones can be used for bandwidth management. In this respect, the zone concept is similar to the Avaya Communication Manager “network region” (see Section 4.2). A zone must be configured prior to the virtual route. Select Configuration Zone from the Navigation Tree.

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Choose an unused zone number from the drop-down, and click to Add, or select one of the previously defined zones to expand the menu, as shown above for Zone 0. Zone 2 will be associated with the IP route to the Avaya S8300 Media Server.

From the Zone Basic Property and Bandwidth Management page, observe the options. The Intrazone Strategy has been left at the default value of Best Quality (BQ). From the Interzone Strategy drop-down, the value Best Bandwidth (BB) has been selected. This approach is similar to the Avaya configuration in Section 4.2. All other parameters are shown with their default values. Enter text in the Description field if desired, and click the Submit button.

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5.5. Configure Virtual Route
Select Configuration Customer Explorer from the Navigation Tree.

Click the Add route button associated with the customer.

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Under Basic Configuration in the prior screen, select a Route Number from the drop-down. In these Application Notes, Route Number 11 is associated with the IP virtual route to the Avaya S8300 Media Server. From the Trunk Type drop-down, select TIE Trunk Data Block (TIE). Once “TIE” is selected, additional options appear. Check the box The route is for a virtual trunk route (VTRK). Enter a zone number (e.g., 2) in the Zone for codec selection and bandwidth management (ZONE) field. Enter the node id (e.g., 271) in the Node ID of signaling server for this route (NODE) field. Confirm the auto-filled Protocol ID for the route (PCID) is set to H323 (H323). Check the boxes for Integrated Services Digital Network (ISDN), Network Calling Name Allowed (NCNA), and Network Call Redirection (NCRD). In the Mode of operation (MODE) drop-down, select Route uses ISDN Signaling Link (ISLD). Enter the D-channel number configured previously (e.g., 11). Scroll to the top of the page and enter an Access code for the trunk route (ACOD). Other options can be set according to customer considerations, or left at their default settings. When finished, click the Submit button.

5.6. Configure Virtual Trunks
Select Configuration Customer Explorer from the Navigation Tree. Select the customer to expand the list of routes. Click the Add Trunk button beside the desired route (e.g., Route 11).

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In the Trunk data block (TYPE) drop-down, select IP Trunk (IPT1). In the Terminal Number (TN) field, enter an unused TN (e.g., 062 00). Consult [1] for a discussion of TN numbers and virtual loops for IP terminals and trunks. In the Extended Trunk (XTRK) dropdown, select Virtual trunk (VTRK). In the Route Number, Member number (RTMB) field, enter the configured route from Section 5.5 followed by a space and the configured trunk member (e.g., 11 1). Fill the remaining fields according to customer preference. Repeat this procedure for each trunk member. Alternatively, to add multiple trunk members in a single operation, use the Multiple trunk input number (MTINPUT) drop-down. When finished, click the Submit button.

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The following Customer Explorer screen shows the results after two virtual trunk members have been added to Route 11. Configure the same number of virtual trunk members in Succession as have been configured as trunk members in the corresponding Avaya Communication Manager trunk group (i.e., Trunk Group 7 in Section 4.2).

5.7. Enable Desired Networking Options for the Call Server
These Application Notes use the Coordinated Dial Plan (CDP) feature to steer calls from the Nortel Succession to the IP Trunk to Avaya Communication Manager. The Nortel CDP feature together with the Avaya Communication Manager Uniform Dial Plan (UDP) feature enable Nortel and Avaya telephone users to dial 5-digit extensions to reach one another. Of course, other numbering plan options are also possible.

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To ensure that CDP is enabled, select Network Numbering Plan Call Server from the Navigation Tree. Select ESN Access Codes and Parameters (ESN).

Scroll down to the bottom of the resulting screen and check Coordinated Dial Plan Feature for this customer (CDP). Scroll to the bottom of the page and click Submit.

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The default parameters for Network Control must be turned on. From the Navigation Tree, select Network Numbering Plan Call Server. Select Network Control Parameters (NCTL).

Select the Edit button next to Network Control Basic Parameters.

On the resulting page, click the Submit button to accept the default parameters.

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5.8. Configure Route List Block
Configure the Route List Block that will be used to route calls over the virtual trunk route. From the Navigation Tree, select Network Numbering Plan Call Server. Next, select Route List Block.

In the resulting Route List Blocks page, enter an unused route list block index in the text box and click the to Add button. Route List Block Index 11 will be associated with the IP trunk to the Avaya S8300 Media Server.

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In the Route Number (ROUT) drop-down, select the appropriate route (e.g., 11). Other parameters can be set according to customer preference or left at their default values. Click the Submit button.

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5.9. Configure Steering Codes
From the Navigation Tree, select Network Numbering Plan Call Server. Under the Coordinated Dialing Plan heading, select Distant Steering Code (DSC).

Enter the leading digits of a CDP number (e.g., 43) in the Please enter a distant steering code text box, and click the to Add button.

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In the Flexible Length number of digits (FLEN) text box, enter the number of digits used in the CDP. In these Application Notes, a 5-digit dialing plan is illustrated. In the Route List to be accessed for trunk steering code (RLI) drop-down, select the appropriate route (e.g., 11). Click the Submit button.

5.10. Configure Codecs
From the Navigation Tree, select Configuration IP Telephony.

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Click the Edit button. The Edit page displays, illustrating the basic configuration of the node.

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Click VGW Profile. Select the check boxes for the desired codecs. In these Application Notes, G729AB is illustrated for calls between Avaya and Nortel users.

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Click on each codec if additional special configuration of the codec is desired. The following screen shows the expanded view for G729AB, although all values are left at their defaults.

When finished, scroll to the bottom of the screen, and click the Save and Transfer button. A series of pages may display, indicating the progress and result of the operation.

5.11. Verify the Gatekeeper and Signaling Server Configuration
Although a thorough treatment of installation and configuration of the Gatekeeper software is beyond the scope of these Application Notes, this section presents the essential Gatekeeper configuration used in the network of Figure 1. From the Navigation Tree, select Configuration Summary web page, click Edit. IP Telephony. From the resultant Node

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Click on Gatekeeper to expand the options. As can be seen from the screen below, the Primary gatekeeper IP address is set to 192.168.1.30, which is the TLAN IP address of the Succession Signaling Server running the Gatekeeper application. Note that the IP address entered into this field is not the Node IP address.

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Click on Signaling Servers, and then click on the appropriate signaling server properties. The screen below illustrates the configuration for the network in Figure 1. Observe that the Terminal Proxy Server (TPS) and virtual trunk TPS are enabled, and the H323 ID is the text string “271”. This is the primary gatekeeper. If configuration is being performed rather than simply observed, click the Save and Transfer button at the bottom of the screen, and reboot the Signaling Server.

5.12. Gatekeeper Database Configuration
In these Application Notes, a simple Gatekeeper database is configured to cause dialed digits of the form 43xxx to be routed to the Avaya S8300 Media Server. The approach can be generalized for any numbering plan. The Avaya S8300 Media Server will be defined as a “non-RAS endpoint”. This section will describe only those aspects of the Gatekeeper configuration that are relevant to the communication with the Avaya S8300 Media Server. When the Avaya system is added as a non-RAS endpoint, no H.323 “Location Request” (LRQ) will be sent before initiating call setup. An alternative approach would be to define the Avaya system as a zone gatekeeper. Although not specifically illustrated in these Application Notes, this summary paragraph is provided to summarize the alternative approach, which has also been verified. If the IP address of the S8300 Media Server were defined in the Nortel Gatekeeper as a zone gatekeeper, the Avaya system would not need to be added as a non-RAS endpoint nor
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would it be necessary to define the numbering plan (e.g., 43xxx) that the Avaya system can terminate. However, an additional signaling group would be required in Avaya Communication Manager. This additional signaling group would have its far-end set to the TLAN IP of the Nortel Succession Signaling Server that would appear as the source IP of the LRQ. The nearend and far-end listen ports for this additional signaling group would be set to 1719 (for RAS). The additional signaling group could be associated with the same trunk group (e.g., trunk group 7) used for the outbound calls from Avaya to Nortel. That is, inbound and outbound calls could effectively use the same Avaya IP trunk group, even though outbound calls (to Nortel) would use Signaling Group 7 as defined in Section 4.2, while inbound calls (from Nortel) would use the additional RAS LRQ signaling group summarized in this paragraph.

5.12.1.

Log in to the Gatekeeper using Element Manager

One means to log in to the Gatekeeper configuration web pages is via Element Manager. From the Navigation Tree, select Network Numbering Plan Gatekeeper.

Click the Next button. When the Login window displays, enter an appropriate User Name and Password and click OK. A welcome page similar to the following will display.

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5.12.2.

Configure the Standby Database

The Gatekeeper maintains two databases. Configuration changes are made to the standby database. When configuration is completed on the standby database, the standby database can be cutover to become the active database. To configure a CDP domain, select GK Standby DB Admin CDP Domains Create from the Navigation Tree. Enter a CDP Domain Name (e.g., CDP_271) and click the Create button.

To add the S8300 Media Server as a “non-RAS endpoint”, select GK Standby DB Admin H323 Endpoints Add non-RAS Endpoint from the Navigation Tree.

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Enter a descriptive name in the Legacy Alias Name field, and enter the IP Address of the Avaya S8300 Media Server in the Legacy IP address field. In this case, the name “To-Avaya-nonLRQ” is used, and the IP address of the S8300 Media Server is 2.2.10.78, as shown in Figure 1. Click the Create Legacy button.

Next, configure the numbering plan entries that will be associated with this endpoint. From the Navigation Tree, select GK Standby DB Admin Numbering Plan Entries Create. From the Endpoint drop-down, select the appropriate name (e.g., To-Avaya-non-LRQ).

Click the Select button.

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In the Number text box, enter the leading digits of the dialed number to be directed to the Avaya S8300 Media Server. In these Application Notes, all numbers of the form 43XXX are directed to the non-RAS endpoint named “To-Avaya-non-LRQ”. The default for the Type field can be retained. Click the Create button.

5.12.3.

Test the Standby Database

Before making the standby database the active database, it may be desirable to test the numbering plan. From the Navigation Tree, select GK Standby DB Admin Test Numbering Plan. In the Number Query text box, enter the extension of an Avaya telephone, such as 43209. In the Origination Endpoint drop-down, select the endpoint corresponding to the Nortel Succession devices (e.g., 271). Click the Query button.

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A screen similar to the following should display, indicating that the call will be directed to the Avaya S8300 Media Server.

5.12.4.

Cutover the Standby Database

When satisfied that the standby database is proper, the standby database can be made the active database. From the Navigation Tree, select GK Standby DB Admin Database Actions.

To swap the active and standby databases, retaining the uniqueness of each, click the Cutover button. To make the standby database active and also synchronize the databases so that the
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primary and standby databases are identical, click the SingleStepCutoverCommit button. In the example below, the Cutover button was used.

5.12.5.

Test the Active Database

Before making calls, it may be desirable to check the active database. Similar procedures to those described in Section 5.12.3 may be used to test the active database after cutover. From the Navigation Tree, select GK Active DB Admin Test Numbering Plan, and follow the procedures shown in Section 5.12.3.

6. Verification
Verification of the configuration described in these Application Notes included: ? Calls between Nortel IP telephones and Software Phones controlled by the Nortel Succession and Avaya IP Telephones and Softphones registered to the Avaya S8300 Media Server. Successful calls can be made in both directions across the IP Trunk using either G.729AB or G.711MU. As mentioned previously, “shuffling” of the media to “ipdirect” must be disabled. Calls between Nortel IP telephones and Software Phones controlled by the Nortel Succession and Avaya digital telephones connected to the Avaya G700 Media Gateway. Successful calls can be made in both directions using G.711MU or G.729AB. This result may be extrapolated to other non-IP devices connected to the G700 Media Gateway (e.g., analog telephones, PSTN trunks, etc.). Calls from Nortel IP telephones and Nortel digital telephones into an Avaya Meet-Me conference configured on the Avaya S8300 Media Server. After the welcome announcement prompts the caller for the conference password, digits pressed on any of the Nortel telephone keypads (to enter the conference password) are processed properly, and the Nortel telephones can participate in the conference. This verification is included to show that Avaya applications requiring DTMF collection can collect the digits using out-of-band signaling from the IP Trunk interface to the Nortel server. The IP Trunk interface serving the Nortel telephones can be muted using the Avaya Communication Manager “fe-mute” feature button, and the Nortel telephone can use the “#” key to unmute the trunk. Far-end mute is a feature that can be used to allow unwanted music on
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?

?

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?

? ?

hold or noisy audio sources to be muted at the Avaya trunk interface by a displayequipped telephone or softphone. Calls from Avaya IP Telephones, Avaya IP Softphones, and Avaya digital telephones interacting with the Call Pilot voice messaging system of the Nortel Succession. Digits pressed on the Avaya telephone keypads are processed properly by the Nortel voice messaging application. This verification is included to show that Nortel applications requiring DTMF can collect the digits using out-of-band signaling from the IP Trunk interface to the Avaya server. Ringback tone to the originator of calls is heard when appropriate in all cases. Calling party number can be displayed for calls in either direction: o For calls from an Avaya telephone to a Nortel telephone, the Nortel telephone can display the number of the Avaya caller, provided the Avaya server is provisioned to send this information. The screen capture from the Nortel i2050 Software Phone in Section 7.5 illustrates the calling number of the Avaya caller. o For calls from a Nortel telephone to an Avaya telephone, the Avaya telephone can display the calling party number, when sent by the Nortel Succession. The screen capture from the Avaya IP Softphone in Section 7.5 illustrates the calling number of the Nortel caller.

7. Detailed Information for Active Calls
To reinforce the understanding of the configuration, the following subsections show detailed status for representative calls.

7.1. Avaya IP Telephone Calls Nortel IP Telephone
This section presents details for a call involving the Avaya 4620SW IP Telephone with IP address 2.2.10.201 (x43210) and the Nortel IP Telephone with IP address 192.168.1.106 (x53507). Avaya IP telephones are registered with the S8300 Media Server, whose address is 2.2.10.78. Nortel IP telephones are registered with the Nortel Succession Node IP, whose address is 192.168.1.33. Observe the final audio path for the call, shown in the Avaya “status station” screen below. The first media path shown, between the Avaya IP Telephone and the Avaya G700 Media Gateway VoIP at 2.2.10.79, is within Network Region 1. Recall that Codec Set 1 has been configured for intra-region calls, and Codec Set 1 contains G.711MU at 2 Frames Per Packet (20 msec audio). The second media path shown is from the G700 VoIP at 2.2.10.79 to the Nortel IP Telephone. This connection was configured as an inter-region call between Network Region 1 and Network Region 4, due to the “Far-end Network Region” field being set to 4 for the signaling group to the Nortel Succession Node IP. Codec Set 4, which contained G.729AB , is configured for calls between Regions 1 and 4. Recall that the G700 Media Gateway VoIP remains in the communication path because “Direct IP-IP Audio Connections” or “shuffling” has been turned off on the signaling group to the Nortel Succession. With the software loads shown in Table 1, it is necessary to turn off shuffling.

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status station 43210 CONNECTED PORTS src port: S00001 MP ip-start: 2. 2. 10.201:2816 ip-end: 2. 2. 10. 79:2112 audio: G.711MU encryption:none ip-start: 2. 2. 10. 79:2114 ip-end: 192.168. 1.106:5200 audio: G.729A+B encryption:none dst port: T00007

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HP

001V103 ss:off pkt:20ms 001V102 ss:off pkt:20ms

The following screen shows the results of the Nortel npmShow command issued from a telnet session into the Nortel Succession Node IP.
oam> npmShow Npm status: Active GateKeeper: GateKeeper registration status: Channels Busy / Idle / Total: Stack version: Channel tracing: Signaling Server H323 ID : Chan Direction MS Fax DestNum ---- ---------- --- ------25 Terminate s no 53507 Active 192.168.1.30 (primary) registered, TTL: 25 secs, re-register: 15 secs 1 / 381 / 382 RadVision 4.1.0.19 -1 271

CallState RxState TxState Codec AirTime FS RemoteIP --------- --------- --------- ---------------------- ------- ----------------Connected Connected Connected G_729AB_20MS 257 yes 2.2.10.78

The following illustrates the first page of the Avaya “status trunk” screen for this same call. This is included to illustrate the H.245 and Q.931 signaling from the S8300 Media Server (2.2.10.78) to the Nortel Succession Node IP Address (192.168.1.33).
status trunk 7/1 TRUNK STATUS Trunk Group/Member: 0007/001 Port: T00007 Signaling Group ID: Connected Ports: S00001 Port Near-end Signaling: 01A0017 2. 2. H.245: 01A0017 2. 2. G.729A+B Audio: 1 2. 2. H.245 Tunneled in Q.931? no Audio Connection Type: ip-tdm Service State: in-service/active Maintenance Busy? no CA-TSC state: not allowed Page 1 of 2

IP Addr 10. 78 10. 78 10. 79

: : : :

Port 10879 10880 2114

Far-end IP Addr 192.168. 1. 33 192.168. 1. 33 192.168. 1.106

: : : :

Port 1720 1369 5200

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7.2. Nortel IP Telephone Calls Avaya IP Telephone
The following Avaya screens show status for a call from a Nortel IP telephone to an Avaya IP Telephone.
status trunk 7/1 TRUNK STATUS Trunk Group/Member: 0007/001 Port: T00007 Signaling Group ID: Connected Ports: S00001 Port Near-end Signaling: 01A0017 2. 2. H.245: 01A0017 2. 2. G.729A+B Audio: 1 2. 2. H.245 Tunneled in Q.931? no Audio Connection Type: ip-tdm Service State: in-service/active Maintenance Busy? no CA-TSC state: none IP Addr 10. 78 10. 78 10. 79 : : : : Port 1720 10885 2116 Far-end IP Addr 192.168. 1. 33 192.168. 1. 33 192.168. 1.106 : : : : Port 1370 1371 5200 Page 1 of 2

The next screen shows Page 2. Observe that the packet size negotiates to 10ms for calls from Nortel to Avaya.
status trunk 7/1 CONNECTED PORTS src port: T00007 MP ip-start: 192.168. 1.106:5200 ip-end: 2. 2. 10. 79:2116 audio: G.729A+B encryption:none ip-start: 2. 2. 10. 79:2118 ip-end: 2. 2. 10.201:2816 audio: G.711MU encryption:none dst port: S00001 001V102 ss:off pkt:10ms 001V103 ss:off pkt:20ms HP Page 2 of 2

The next screen shows the information for this call available from the “npmShow” command from the Nortel Succession Signaling Server CLI.
oam> npmShow Npm status: Active GateKeeper: GateKeeper registration status: Channels Busy / Idle / Total: Stack version: Channel tracing: Signaling Server H323 ID : Chan Direction MS Fax DestNum ---- ---------- --- ------26 Originate s no 43210 Active 192.168.1.30 (primary) registered, TTL: 25 secs, re-register: 8 secs 1 / 381 / 382 RadVision 4.1.0.19 -1 271

CallState RxState TxState Codec AirTime FS RemoteIP --------- --------- --------- ---------------------- ------- ----------------Connected Connected Connected G_729AB_10MS 300 yes 2.2.10.78

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7.3. Nortel Digital Telephone calls Avaya Digital Telephone
This section illustrates details for a call between an Avaya digital telephone (i.e., example of a non-IP Telephone) connected to port 1v301 on the G700 Media Gateway and the Nortel M3904 Digital Phone with extension 53501. The Nortel digital telephone dialed the Avaya digital telephone (x43000). Observe the Q.931 and H.245 signaling path is between the Avaya S8300, whose IP address is 2.2.10.78 (near-end of Signaling Group 7), and the Nortel Succession Node IP, whose IP address is 192.168.1.33 (far-end of Signaling Group 7). The audio path is from the G700 VoIP media processor, whose IP address is 2.2.10.79, to the Nortel Succession Media Card with IP Address 192.168.1.31.
status trunk 7/1 TRUNK STATUS Trunk Group/Member: 0007/001 Port: T00007 Signaling Group ID: Connected Ports: 001V301 Port Near-end Signaling: 01A0017 2. 2. H.245: 01A0017 2. 2. G.729A+B Audio: 1 2. 2. H.245 Tunneled in Q.931? no Audio Connection Type: ip-tdm Service State: in-service/active Maintenance Busy? no CA-TSC state: none IP Addr 10. 78 10. 78 10. 79 : : : : Port 1720 10890 2120 Far-end IP Addr 192.168. 1. 33 192.168. 1. 33 192.168. 1. 31 : : : : Port 1372 1373 5206 Page 1 of 2

The following screen shows Page 2.
status trunk 7/1 CONNECTED PORTS src port: T00007 MP ip-start: 192.168. 1. 31:5206 ip-end: 2. 2. 10. 79:2120 audio: G.729A+B encryption:none dst port: 001V301 001V102 ss:off pkt:10ms HP Page 2 of 2

The next screen shows the information available from the “npmShow” command from Nortel Succession for this call. The screen has been edited to remove common information.
oam> npmShow Chan Direction MS Fax DestNum ---- ---------- --- ------26 Originate s no 43000 CallState RxState TxState Codec AirTime FS RemoteIP --------- --------- --------- ---------------------- ------- ----------------Connected Connected Connected G_729AB_10MS 315 yes 2.2.10.78

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7.4. Avaya Digital Telephone calls Nortel Digital Telephone
The following screen shows a status screen for a call from Avaya digital telephone extension 43000 to Nortel digital telephone 53501.
status trunk 7/2 TRUNK STATUS Trunk Group/Member: 0007/002 Port: T00008 Signaling Group ID: Connected Ports: 001V301 Port Near-end Signaling: 01A0017 2. 2. H.245: 01A0017 2. 2. G.729A+B Audio: 1 2. 2. H.245 Tunneled in Q.931? no Audio Connection Type: ip-tdm Service State: in-service/active Maintenance Busy? no CA-TSC state: not allowed IP Addr 10. 78 10. 78 10. 79 : : : : Port 10895 10896 2122 Far-end IP Addr 192.168. 1. 33 192.168. 1. 33 192.168. 1. 31 : : : : Port 1720 1374 5210 Page 1 of 2

The following screen shows Page 2.
status trunk 7/2 CONNECTED PORTS src port: T00008 MP ip-start: 192.168. 1. 31:5210 ip-end: 2. 2. 10. 79:2122 audio: G.729A+B encryption:none dst port: 001V301 001V102 ss:off pkt:20ms HP Page 2 of 2

The next screen shows the information available from the “npmShow” command from Nortel Succession for this call. Again, the screen has been edited to remove common information.
oam> npmShow Chan Direction MS Fax DestNum ---- ---------- --- ------25 Terminate s no 53501 CallState RxState TxState Codec AirTime FS RemoteIP --------- --------- --------- ---------------------- ------- ----------------Connected Connected Connected G_729AB_20MS 166 yes 2.2.10.78

7.5. Calls Involving Nortel IP Software Phone or Avaya IP Softphone
7.5.1. Example of Call Using Nortel i2050 Software Phone
The following screens illustrate details for a call between an Avaya digital telephone connected to port 1v301 in the G700 Media Gateway and the Nortel i2050 Software Phone, loaded on a computer whose IP address is 192.168.1.6. The Avaya digital telephone is extension 43000, and the Nortel i2050 Software Phone is extension 53509. In this example, the Avaya digital set dialed 53509. This call does not illustrate any new concept; it is presented to include status of a call involving the Nortel i2050 Software Phone.

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status trunk 7/1 TRUNK STATUS Trunk Group/Member: 0007/001 Port: T00007 Signaling Group ID: Connected Ports: 001V301 Port Near-end Signaling: 01A0017 2. 2. H.245: 01A0017 2. 2. G.729A+B Audio: 1 2. 2. H.245 Tunneled in Q.931? no Audio Connection Type: ip-tdm

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Service State: in-service/active Maintenance Busy? no CA-TSC state: not allowed

IP Addr 10. 78 10. 78 10. 79

: : : :

Port 11023 11024 2248

Far-end IP Addr 192.168. 1. 33 192.168. 1. 33 192.168. 1. 6

: : : :

Port 1720 1421 5200

Page 2 shows further details of the IP audio path, using G.729AB between the Nortel IP Software Phone (192.168.1.6) and the G700 Media Gateway VoIP (2.2.10.79).
status trunk 7/1 CONNECTED PORTS src port: T00007 MP ip-start: 192.168. 1. 6:5200 ip-end: 2. 2. 10. 79:2248 audio: G.729A+B encryption:none dst port: 001V301 001V103 ss:off pkt:20ms HP Page 2 of 2

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The following is a screen capture of the Nortel i2050 Software Phone while this call was in progress. Note that the caller identification (43000) of the Avaya originator is displayed.

The next (edited) screen shows the information available from the “npmShow” command from the Nortel Succession Signaling Server CLI, while this call was in progress.
oam> npmShow Chan Direction MS Fax DestNum ---- ---------- --- ------25 Terminate s no 53509 CallState RxState TxState Codec AirTime FS RemoteIP --------- --------- --------- ---------------------- ------- ----------------Connected Connected Connected G_729AB_20MS 410 yes 2.2.10.78

7.5.2. Example of Call Using Avaya IP Softphone
The following screen illustrates details for a call from a Nortel IP Telephone to an Avaya IP Softphone, loaded on a computer whose IP address is 2.2.10.215. The Avaya IP Softphone is
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logged in as extension 43210, and the Nortel IP Telephone is extension 53506. In this example, the Nortel IP Telephone called extension 43210. This call does not illustrate any new concept; it is presented to include status of a call involving the Avaya IP Softphone.
status station 43210 CONNECTED PORTS src port: S00001 MP ip-start: 2. 2. 10.215:2048 ip-end: 2. 2. 10. 79:2276 audio: G.711MU encryption:none ip-start: 2. 2. 10. 79:2274 ip-end: 192.168. 1.103:5200 audio: G.729A+B encryption:none dst port: T00007 001V103 ss:off pkt:20ms 001V102 ss:off pkt:10ms HP Page 5 of 6

The following is a screen capture of the Avaya IP Softphone while this call was in progress. Note that the caller identification (53506) of the Nortel originator is displayed.

7.6. Status for Nortel IP Devices
The following commands can be executed from the CLI of the Succession Signaling Server. The following screen shows the registration of the Nortel IP Telephones shown in Figure 1, using the “isetShow” command from the CLI. Observe the registered status of the i2002, i2004, and i2050 Software Phone depicted in Figure 1.

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oam> isetShow Set Information --------------IP Address Type RegType State Up Time Set-TN Regd-TN HWID FWVsn UNIStimVsn SrcPort DstPort ------------------ ---------- ------- ------------ -------------- ------------ ----------- ------------------ ------- ---------- ------- ------192.168.1.103 i2002 Regular online 6 03:40:34 061-01 061-01 18000ae40860fc6600 0603B59 2.8 5100 5000 192.168.1.104 i2004 Regular online 6 01:26:39 061-04 061-04 18000ae40829b16600 0602B59 2.8 5100 5000 192.168.1.105 i2004 Regular online 6 01:25:31 061-00 061-00 18000ae40829a26600 0602B59 2.8 5100 5000 192.168.1.106 i2002 Regular online 5 05:18:19 061-05 061-05 18000ae40860f86600 0603B59 2.8 5100 5000 192.168.1.6 i2050 Regular online 0 00:10:28 061-02 061-02 18000bdb03ee7e6600 1400346 2.6 5100 5000 Total sets = 5

The following screen shows the status of the Terminal Proxy Server, using the “tpsShow” command available from the CLI.
oam> tpsShow Node ID : Is master : Up time : Platform : TPS Service : IP TLAN : IP ELAN : ELAN Link : Sets Connected: Sets Reserved : oam> 271 1 7 days, 22 hours, 8 mins, 12 secs ISP 1100 Yes 192.168.1.30 192.168.0.3 Up 5 0

(684492 secs)

The following screen shows the status of the virtual trunks, using the “vtrkShow” command. In this case, the command was executed with a call actively using one of the virtual trunks.
oam> vtrkShow ------------------------------------------------------------------------------------------IND TN DCH PROTOCOL CHID CUST ROUTE MEMB ICOG VoIP ESN5 PRFX SAT NCOS STATUS ------------------------------------------------------------------------------------------0 062-00 011 MCDN->EST 025 00 011 001 IO H323 NO ---- NO 00 CS BUSY 1 062-01 011 MCDN->EST 026 00 011 002 IO H323 NO ---- NO 00 CS IDLE -----------------------------------------------------------------------------------------------VTRK State = Active --------------------------VTRK Status = Enabled ---------------------------

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The following screen shows summary information on the status of the Succession Media Card, using the “itgCardShow” command available from the CLI of the Media Card (i.e., telnet to 192.168.1.31). In this case, the command was executed with a call actively using one of the virtual trunks.
IPL> itgCardShow Index : Type : Role : Node : Leader IP : Card IP : Card TN : Card State : Uptime : Codecs : ELAN (ixpMac1) stat: TLAN (ixpMac0) stat: value = 1 = 0x1 2 EXUT Follower 271 192.168.1.33 192.168.1.31 Slot 14 ENBL 7 days, 3 hours, 56 mins, 40 secs (619000 secs) G711Ulaw(default), G711Alaw, G729A, G729AB, G711CC, T38FAX 10 Mbps, Half duplex (Carrier OK) 100 Mbps, Full duplex (Carrier OK)

The following screen shows summary information on the voice gateway status of the Succession Media Card, using the “vgwShow” command available from the CLI of the Media Card (i.e., telnet to 192.168.1.31). In this case, the command was executed with a call actively using one of the virtual trunks to the Avaya system.
IPL> vgwShow VGW Service is: Enabled Chan ChanState DspMode Codec Tn Reg AirTime rxTsap txTsap ---- ---------- --------- ---------- ------ --- ------- -------------------- ------------------5 Busy Voice G.729AB-20 0x0c49 yes 1458 192.168.1.31:5210 2.2.10.79:2122 value = 98 = 0x62 = 'b'

As previously mentioned, calls among the Avaya endpoints in “ip-network-region 1” will use G.711MU while calls across the IP Trunk will use G.729AB. The following screens illustrate the similar concept for calls among the Nortel endpoints. The following screen shows summary information on the voice gateway status of the Succession Media Card, using the “vgwShow” command available from the CLI of the Media Card (i.e., telnet to 192.168.1.31). In this case, the command was executed with two calls active. The G.729AB resource is being used for a virtual trunk call with the Avaya system. The G.711 resource is being used for a call involving a Nortel IP Telephone (192.168.1.103) and a Nortel digital telephone.

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IPL> vgwShow VGW Service is: Enabled Chan ChanState DspMode txTsap ---- ---------- ------------------------8 Busy Voice 92.168.1.103:5200 12 Busy Voice 2.2.10.79:2126 value = 98 = 0x62 = 'b'

Codec

Tn

Reg AirTime

rxTsap

---------- ------ --- ------- -------------------- --G.711-20 0x0c88 yes 371 243 192.168.1.31:5216 192.168.1.31:5224 1

G.729AB-20 0x0cc8 yes

7.7. Multiple Calls Active over the Avaya-Nortel IP Trunk
The following screens were captured while two calls were active over the Avaya – Nortel IP Trunk. In this example, two Nortel IP Telephones and one Avaya IP Telephone were dialed into an Avaya Meet-Me Conference. (If one call at a time can be placed over the IP Trunk, but problems arise when a second concurrent call is attempted, verify the “Calls Share Signaling Connection” parameter is set to “no” on the Avaya signaling group.) The following screen shows that both members of Trunk Group 7 are active.
status trunk 7 Member Port TRUNK GROUP STATUS Service State Mtce Connected Ports Busy in-service/active no T00008 S00001 in-service/active no T00007 S00001

0007/001 T00007 0007/002 T00008

All participants in the conference were required to enter a passcode, and therefore success of this call requires that Avaya Communication Manager can properly interpret the out-of-band DTMF signals from the Nortel Succession.
status meet-me-vdn 43801 GENERAL STATUS Service State: active Extension: 43801 Connected Ports: T00007 T00008 S00001

The following “status station” screens illustrate the media paths. Observe the two separate G.729A+B sessions over the two IP Trunks, and the use of G.711MU from the Avaya IP Telephone to the Avaya G700 VoIP resource.

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status station 43210 CONNECTED PORTS src port: S00001 MP ip-start: 2. 2. 10.201:2816 ip-end: 2. 2. 10. 79:2138 audio: G.711MU encryption:none ip-start: 2. 2. 10. 79:2134 ip-end: 192.168. 1.103:5200 audio: G.729A+B encryption:none dst port: T00007

Page

5 of

7

HP

001V104 ss:off pkt:20ms 001V102 ss:off pkt:10ms

The following screen is another page for this same call. Note the second trunk port (T00008).
status station 43210 CONNECTED PORTS src port: S00001 MP ip-start: 2. 2. 10.201:2816 ip-end: 2. 2. 10. 79:2138 audio: G.711MU encryption:none ip-start: 2. 2. 10. 79:2136 ip-end: 192.168. 1.106:5200 audio: G.729A+B encryption:none dst port: T00008 001V104 ss:off pkt:20ms 001V103 ss:off pkt:10ms HP Page 6 of 7

The next (edited) screen shows the information available from the “npmShow” command from Nortel Succession for this same call.
oam> npmShow Npm status: Active GateKeeper: GateKeeper registration status: Channels Busy / Idle / Total: Chan Direction MS Fax DestNum ---- ---------- --- ------26 Originate s no 43801 25 Originate s no 43801 Active 192.168.1.30 (primary) registered, TTL: 25 secs, re-register: 18 secs 2 / 380 / 382 TxState Codec AirTime FS

CallState RxState RemoteIP --------- ----------------------Connected Connected 2.2.10.78 Connected Connected 2.2.10.78

--------- ---------------------- ------- --Connected G_729AB_10MS Connected G_729AB_10MS 1027 yes 1009 yes

7.8. Example of Call Using G.711MU over the IP Trunk
As stated previously, the configuration screens presented in these Application Notes show how to achieve G.729AB over the IP Trunk. A compressed codec like G.729AB might be chosen to conserve bandwidth for VoIP calls over the IP Trunk. Other codecs are also supported. For example, the following screen shows a call from an Avaya IP Telephone to a Nortel IP Telephone across the IP Trunk using G.711MU. G.711MU might be configured to optimize voice quality when ample bandwidth is available. To vary codec selection, the configured Avaya
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Communication Manager “ip-codec-set” can be changed (see Section 4.2), along with Nortel Succession parameters associated with inter-zone behavior (see Section 5.4).
status station 43210 CONNECTED PORTS src port: S00001 MP ip-start: 2. 2. 10.201:2816 ip-end: 2. 2. 10. 79:2150 audio: G.711MU encryption:none ip-start: 2. 2. 10. 79:2152 ip-end: 192.168. 1.106:5200 audio: G.711MU encryption:none dst port: T00007 001V102 ss:off pkt:20ms 001V103 ss:off pkt:20ms HP Page 5 of 6

The next (edited) screen shows the information available from the “npmShow” command from the Nortel Succession Signaling Server CLI for this same call.
oam> npmShow Chan Direction MS Fax DestNum ---- ---------- --- ------25 Terminate s no 53507 CallState RxState TxState Codec AirTime FS RemoteIP --------- --------- --------- ---------------------- ------- ----------------Connected Connected Connected G_711_u_law_20MS_NOVAD 297 yes 2.2.10.78

7.9. Example of Call Using Encryption Among the Avaya IP Devices
If it is desired to use media encryption among the Avaya IP devices, encryption can be enabled for the codec set used for the intra-region connections (e.g., codec set 1 in Section 4.2). For example, the following status screen illustrates a call from an Avaya 4620 IP Telephone to a Nortel IP Telephone where the bolded Avaya intra-region connections use G.711MU and AES encryption, while the connection over the IP Trunk to Nortel continues to use G.729AB and no encryption.
status station 43210 CONNECTED PORTS src port: S00001 MP ip-start: 2. 2. 10.201:2816 ip-end: 2. 2. 10. 79:2050 audio: G.711MU encryption:aes ip-start: 2. 2. 10. 79:2052 ip-end: 192.168. 1.106:5200 audio: G.729A+B encryption:none dst port: T00008 001V103 ss:off pkt:20ms 001V102 ss:off pkt:20ms HP Page 5 of 6

For detailed configuration procedures for media encryption, the interested reader may wish to consult the Application Notes listed as reference [4] in Section 9.

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8. Conclusion
As illustrated in these Application Notes, Avaya Communication Manager can interoperate with Nortel Succession using H.323 Trunks, inclusive of basic calling and out-of-band DTMF collection. Compared with other interoperable H.323 Trunk configurations, the main Avaya Communication Manager configuration differences for interoperability with the Nortel Succession are as follows. First, Special Application SA8507 must be enabled. Second, Direct IP-IP audio connections, often referred to as “shuffling”, must be disabled on the Avaya H.323 signaling group. Finally, if compression using a G.729 variant is desired for calls involving the Nortel Succession Media Card, the Avaya “ip-codec-set” must be configured for “G.729B” or “G.729AB” rather than the generic “G.729” or “G.729A”.

9. References
The following documents from the Succession Meridian Electronic Reference Library CD (Disk 1 of 2, NTLH91AA A0518482) contain information relevant to these Application Notes: [1] IP Peer Networking, Document Number 553-3001-213. [2] Signaling Server: Installation and Configuration, Document Number 553-3001-212 Avaya product documentation can be found at http://support.avaya.com The following references are among the many Application Notes available at http://www.avaya.com/gcm/master-usa/en-us/resource [3] “Configuring Avaya Communication Manager on an Avaya S8300 Media Server with Nortel Business Communications Manager (BCM 200), using H.323 Signaling and IP Trunks – Issue 1.0”. [4] “Configuring Avaya Communication Manager for Media Encryption, Issue 1.0”.

JRR; Reviewed: GAK 3/15/2005

Solution & Interoperability Test Lab Application Notes ?2005 Avaya Inc. All Rights Reserved.

52 of 53 ACM-Succession.doc

?2005 Avaya Inc. All Rights Reserved. Avaya and the Avaya Logo are trademarks of Avaya Inc. All trademarks identified by ? and ? are registered trademarks or trademarks, respectively, of Avaya Inc. All other trademarks are the property of their respective owners. The information provided in these Application Notes is subject to change without notice. The configurations, technical data, and recommendations provided in these Application Notes are believed to be accurate and dependable, but are presented without express or implied warranty. Users are responsible for their application of any products specified in these Application Notes.

Please e-mail any questions or comments pertaining to these Application Notes along with the full title name and filename, located in the lower right corner, directly to the Avaya Solution & Interoperability Test Lab at interoplabnotes@list.avaya.com

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