Good day!!!
I have a CUCM Server version 11, In asterisk there is an option "canreinvite" in the SIP trunks, anyone knows how to make this function in Cisco?
Every time I add a LAN behind CUCM (for instance a floor of my building to separate traffic) That subnet (CIDR) does not have audio, ISP Provider ask me to give them all subnets behind CUCM, after they config the subnets, Voila! there is audio...
Is there any way to make a trunk between CUCM and other device (router, asterisk, avaya, etc) and to make like proxy calls and the calls flow to be between SIP Trunk makers and not endpoint? I mean, is there always the need of comunicate endpoints over IP?
The scenario will be like this:
Endpoint-A ----> Switch-A ---> CUCM-A -->Router-A ---> MPLS <---Router-B <--- CUCM-B <--- Switch-B <--- Endpoint-B
I really appreciate your help, because is like a bit tedious to anounce subnets to providers or customers in order to have it working...