IP Office Technical Tip (Region: Global)

212: T1/PRI ISDN called party type "National Number"

29th August 2008 - Full PDF Text Version


This Technical Tip is to advise customers of a potential issue with T1/PRI lines configured for NI2 that may occur on upgrades or new installations with IP Office releases 4.1(15) and 4.2(4).

It has been observed that T1/PRI line configurations may not accept a called party type set to "National Number". Certain NI2 line configurations are set to accept only called party type "Unknown Numbering Plan". The network provider may not process calls with the "National Number" format, rejecting the call setup as an invalid number format. This results in the inability to initiate outbound calls.

Avaya has produced private build 4.2(49601) to resolve the issue by providing the ability to adjust the called party type to "Unknown Numbering Plan". After installation of the private build you must activate the function by adding the following string into the NoUser Source Numbers tab and then merging the change into the configuration:


Please contact your distributor and reference CQ66774 to receive private build 4.2(49601) should you encounter this issue.