I need help in the mentioned topic.
We have some version 3.2 callmangers on different sites. These CCMs are h.323 gateways of one so this is a star totpology.
We would like to migrate it to CUCM 7. So in the HUB a CUCM 7 was installed and I would use the old CCM 3 as a transit H323 GW till in the others will be added the new server as H.323 gw for the new phone numbers.
But one problem raised. If a phone registered to the old CCM 3 and try to call a phone registered to the new CUCM 7, the called phone can ring but the voice path doesn`t build, after ~7 second the call terminates. The CCM 3 waits for Media Negotiation. The CUCM 7 doesn`t send anything. It doesn`t send negotiation if I uncheck the "Wait for Far End Terminal Capability Set"
The other direction works properly. (Call originated from CUCM 7 registered phone to CCM 3 reg. phone.)
As I seen as difference, the CUCM 7 sends a NOTIFY message after the CONNECT message.
These don`t start negotiation of Teriminal Capability, nor the CCM 3 neither CUCM 7.
Could anybody help me?