06-09-2025 11:57 AM
Currently have a SIP trunk with 6000 DID numbers assigned that points all inbound calls to CUCM. New twist is that we will be adding over 2000 additional DID's that will need to point to a different voice system that is not CUCM. Would like some direction that I need to go with the call routing, there are multiple numbers within the same area code, some go to CUCM some will need to go to the other system. The carrier suggested using separate trunk groups for the 2 different system within the CUBE. Not sure how to set that up either.
Thanks in advance for advice,
Mark
06-09-2025 12:06 PM
Suggest that you look at this document to better understand the options at hand. Explain Cisco IOS and IOS XE Call Routing
06-12-2025 06:50 AM
That document is great but still doesn't answer my questions. Its 1 sip trunk with 4 different sites that calls need to route to. 1 of the PBX's is a CUCM, 1 is a Fortinet PBX, and there are 2 Avaya PBX's for the other 2 sites. I am wanting to use the cube to send the calls to the correct site, based on the 10 digit number if possible.
06-12-2025 05:16 PM
You’d need to have one set of dial peers per destination system. There aren’t much more than that to it. Just setup a E.164 number map per destination system and use that to point out what numbers should be sent to each of your systems.
06-13-2025 11:49 AM
Hi Mark,
As Roger suggested, if the source trunk is the same for all DIDs and you have multiple destination, the better way is to configure one DialPeer for each remote telephone system and create the same number of e164 class maps going to add the correct number (even 10 digits if you do an appropriate digit manupulation on inbound dialpeer) on the correct class map to hit the correct DP with the desired destination.
EG
voice class e164-pattern-map 100
e164 +1999999990
e164 +1999999991
e164 +1999999992
!
voice class e164-pattern-map 101
e164 +18888880
e164 +18888881
e164 +18888882
dial-peer voice 1100 voip
destination e164-pattern-map 100
description TO VOICE SYSTEM A
dial-peer voice 1200 voip
destination e164-pattern-map 101
description TO VOICE SYSTEM B
Please let us know
Regards
Carlo
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