CatalystTech

IP Office Tech Tip 212 seems to be causing a little confusion, due wording used at the time of release.  The Tech Tip was released to address feature that resolves an issue on PRI circuits where the field that defines the number format may need to be changed. The ISDN protocol allows the switches involved in call setup to define the number formats for both Calling Party and Called Party numbers.  Most carriers want to see these fields formatted as National numbering plan.  International calls, Toll Free calls, and even some Local calls may need to be set for Unknown numbering plan on various carriers.

This Tech Tip was released to announce a new option to change the Called Party Numbering Plan.  The announcement was made prior to the 4.2(11) GA code release and did not take into account future release schedules.  This feature has now been permanently implemented, and there is no longer any need for a Private Build.  Simply add the source number of “NI2_CALLED_PARTY_TYPE=UNKNOWN” to the NoUser profile on any IP Office running firmware 4.2(11)+ experiencing calls failing for an invalid numbering plan.
The Tech Tip states:

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:

NI2_CALLED_PARTY_TYPE=UNKNOWN

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

[Reference: TechTip 212]