Hi,
I got the following network setup:
PSTN ---- Cisco 2821 --- SIP Phone (ISDN)
The voice routing should be: a fix ISDN Number (BRI Q.931) should always be routed to a fix sip phone. The call is always initiated from PSTN's side. A transfer from sip to PSTN should also work.
As Voice-Port on the 2821 I use a VIC2-2BRI-NT/TE.
Also the CME (v4.0) is enabled on the router but not necessary to use.
I tried very hard the last weeks to get this setup working (including all the cisco reference guides) but so far it's not working.
Can someone give me hints for configuration (or even a sample configuration for this setup) to get me going on? The network and IP setup is fine, only for the voice setup I need help.
Thanks in advance!
B. Morgenthaler