I have a scenario in Lab where I have configured two clusters. Please see the below scenario.
All the phones in 1XX are registered to CUCM and 2XXX are registered to CME and can call to each other in the same cluster.
Now I want to make calls from 1XXX to 2XXX, so what will be dial peer I need to configure in the routers.
can u try adding session protocol sipv2 in CME router under
You are missing some details on your configs.
voice service voip
allow connections sip-to-sip
session target ipv4:10.113.113.2
+++ based on your diagram CUCM IP address should be 10.0.0.1 and session target should point to it+++
session target ipv4:10.0.0.1
In your voice class codec you have selected g729 codec only.
Which codec have you defined on Region configuration on CUCM?
This should match the same codec
Pease check the region associated to device pool defined for the GW.
to simplify this operation allow codec g711ulaw on both CME and GW because is the default codec negotiated by default region on CUCM.
To achieve this, modify voice class codec on both GW and CME:
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g711alaw
codec preference 3 g729br8
Remove dialpeer 11( you don't need it because extensions are locally registered)
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