ISDN Gateway without VCS control

[Abhiram Vadlamudi]

Hi team,

We have a Cisco CUCM v 10.5 deployed and all voice and video endpoints registered to CUCM only, Now I want to integrate Cisco ISDN GW 3241 with CUCM, is it possible ?? ( like the way we add voice gateway ) or will the ISDN GW work stand alone ( by registering to the internal gatekeeper )??

Please suggest ..

[James Hodgson · Accepted solution]

My recommendation would be to set up the ISDN gateway as a standard SIP trunk and configure your dial plans to make sure that PSTN calls get routed to the ISDN gateway. You should be able to use TCP or TLS (assuming you get the certificates set up correctly) but I would recommend only using "Early offer" in the SIP profile.

[Abhiram Vadlamudi]

Mr James, Can you share any documentation of this plzzz... would be highly appreciable..

From above, I understood as below :

- Create a SIP trunk to ISDN gateway from CUCM and set a route pattern  using this SIP trunk

- Configure IP-ISDN and ISDN-IP dial rules

Thats it!!!