According to incoming numbers, the call is routed to the different VG.

[yuexp0929]

Hello All

     My CUCM is Ver.12.5. There is a SIP trunk between the CUCM and another PBX as the attached picture. 

    I met a requirement. The outbound calls from 1XXX on PBX are routed to VG A through SIP Trunk. The outbound calls from 2XXX on PBX are routed to VG B through SIP Trunk.

   I know a solution

1. The called numbers of outbound call from 1XXX are prefixed with 1， and the called numbers of outbound call from 2XXX are prefixed with 2 before leaving the PBX

 2. The call is routed to CUCM through SIP Trunk. 

 3. To match different Route Pattern, and then transfer to the different VGs. 

   I don't like the above solution.   Do you have another solution?  Is it possible to route calls to the different VG according to the calling number?

[Roger Kallberg]

In CM you can route calls based on calling number instead of the normal to use called number. Google it and you’ll find plenty of references on how to set this up.

[Roger Kallberg · Accepted solution]

Look at this excellent post for details on how to set this up. It outlines how to block calls, so it’s not a straight up fit, but this can easily be modified slightly to route calls instead.