We have a CME connected via H323 trunk to CM 4.2 and have established connectivity between phones on both systems.
However, when a CME phone calls a CM phone, then is transferred to another phone on same CM, we see the call connected but with no audio in either direction.
Supplementary services have been turned off on CME.
Reading on CME to CM connectivity indicates we may need a gatekeeper .... does this sound right ??
Any help is much appreciated.