SIP Trunk between 3CX and CUCM 12.x

[Daniel Sobrinho]

Hi team,

I have a lot post about that in the forum but I would apreciate a step by step how to create in Bridge in 3CX and SIP trunk in CUCM that allowing calls between extensions.

Have a great day
Daniel

 

[leejor]

If the CUCM is able to register a SIP trunk to a "provider", then in theory, you should be able to have it register to a 3CX Bridge trunk you create. then it is a matter of working out the dialling plan/routing at both ends.

https://www.3cx.com/docs/

There are a number of posts on the subject, in the 3cx forum, and others.

https://www.3cx.com/community/threads/help-trunk-between-3cx-and-cisco-ucm.46979/

https://community.cisco.com/t5/ip-telephony-and-phones/cucm-11-5-sip-trunk-to-3cx/td-p/3043547