Hi,
We are doing a pilot project of UM 2007 by integrating with CUCM 6.1.2
and the integration happend fine. UM Voicemail Pilot number 44410 can
be reached from all the Cisco IP Phones and able to work on all
features of UM. And we have a Gatekeepr controlled trunk between CUCM
and Nortel 11C at Gurgaon. They are unable to reach Exchange UM Pilot
number which is 44410 either direcly dialling the number or through
dialing an UM user and unable to reach VM at the time of leaving a
voicemail.
But all other extensions of Cisco can be reached from Nortel. I have
also analyzed the packets between Cisco and UM and found that whenever
Nortel is calling UM there is no RTP session initated and the cause
code says Resourse unavailable.
Please let me know is there any limitation in getting this done or can
we do some changes at the Gateway where Nortel is pointed. One of my
colleauge says it is a kind of tandum switching which is not supported
by Cisco.