Nortel Networks TP-1610 SIP Nortel IMS Specific Features and Configuration, 13.1 SIP2PRI Gateway

Mediant 2000 SIP

8.13 Nortel IMS Specific Features and Configuration

8.13.1 SIP2PRI Gateway

To enable Nortel’s IMS SIP2PRI gateway specific features, add the following parameters to the ini file:

ApplicationProfile = 4444 IsProxyUsed = 1 SendInviteToProxy = 1 ProxyIP = <Proxy IP address> EnableHold = 1 EnableTransfer = 1 EnableForward = 1 xferPrefix = $ RemovePrefix = 1 EnableRPIHeader = 1 IsDTMFUsed = 1 OutOfBandDTMFFormat = 1 DTMFTransportType = 0 AddTrunkGroupAsPrefix =1 NumberMapTel2IP = *, 1 AlwaysUseRouteTable = 1 RouteModeIP2Tel = 0 DefaultNumber = 9999000 SourceNumberMapTel2IP = 9999,0,Anonymous,0

AddIEinSetup = <IE data in (hex format), used in ISDN SETUP> SendIEonTG = <list of Trunk Group IDs, from where the IE is sent>

Note: The parameter ‘ApplicationProfile = 4444’ enables Nortel’s ISDN PRI specific features.

8.13.1.1 SIP to PRI Calls

Routing IP-originated calls to PRI is performed according to a concatenation of domain name and trunk group name. Before applying any of the routing or manipulation rules on an incoming IP call, the SIP2PRI gateway creates a new number from the SIP INVITE message; combining the domain name (marked in red) followed by a forward slash ‘/’ and trunk group name (marked in blue), finally appended with the initial phone number (marked in pink). The routing rules are applied only after the new number is created.

For example:

INVITE sip:2145551234@nortelnetworks.com:5060;norteltrkgrp=TrkGrp3;user=phone SIP/2.0”

From the above SIP INVITE message, the following called number is created:

nortelnetworks.com/TrkGrp32145551234

Note 1: ‘norteltrkgrp’ is a hard-coded string that always precedes the trunk group name.

Note 1: Different domain and trunk group names are supported.

Mediant 2000 SIP User’s Manual 158 Document #: LTRT-72504