I am currently working on the integration of a two phone systems with a centralized AVAYA voice mail system.
The AVAYA voice mail system is connected to our Call Manager over 6 QSIG T1's, then I built a QSIG trunk between the Call Manager and the main Nortel switch.
Station-to-station calling works fine as well as a Nortel test phone with voice mail and MWI pointing to the Avaya messaging server.
The issue is the Nortel site is split in two buildings where one has an older Nortel switch model which I believe it's a 2200 or 2300 series that is connected to the main Nortel switch over three ISDN ni2 tie lines(the current software release on this switch does not support QSIG).
At that second location we have a handset with a mail box in AVAYA that when the phone is trying to send the caller to the AVAYA pilot point over the tie lines first then to the AVAYA VM server over the QSIG trunk between the CCM and the Nortel switch, the RDNIS information is getting lost; therefore, VM pilot point does not know how to reach the subscriber and it sends the caller to a general greeting.
We are ordering two additional point-to-point T1's that we could use to connect our facility to the building where the older Nortel switch is.I was wondering if I would create a trunk between that switch and the 3845 gateway using either isdn switch-type ni or DMS-100 and somehow maintain the RDNIS, I could pass that information over the QSIG trunk between CM and AVAYA.
The version of Call Manager is 4.1(3)sr5d; Cisco gateways are 3845 running C3845-SPSERVICESK9-M), Version 12.4(11)T and the AVAYA voice mail is a modular messaging system version 3.0.