CUCM - trunking between 7 and 9

[Ajith Nayak]

Hi,

Document needed to do a trunking between cucm 7 and cucm 9  ( intercluster trunking)

We are planning to route a PSTN call from IP phones which are registerd with old CUCM on version 7 from our new cucm 9 which has FXO- line active.

how do I achive it.

Regards

[islam.kamal]

Hello

You have to use intercluster non-gatekeeper controlled . I do nothink there is special document for this , but you can see the below link:-

https://supportforums.cisco.com/discussion/11766291/intercluster-sip-trunk-between-cucm-version-71-and-91

Thanks

please rate all useful ifnromation

[Jaime Valencia]

Other than the ICT to connect the two clusters, it all comes down to call routing, route pattern, partitions and CSS, nothing else. Route the call from 7 to 9 via ICT, and make sure you can reach the FXO on 9.