I recently configured MoH on my CCM, and everything is working well from IPPhone to.
When I have to place a call to external world, or to our old analog PBX system, route pattern forward the call to a H323 C3640 router gateway.
This gateway is configured with ISDN VIC-2BRI to operate links to outside.
These links are working well since we use it daily to call outside or old PBX phones.
But if during a conversation, I press the Hold button on my IP phone, the remote external phones (under P&T network or PBX system), are not hearing the music!
I really don't understand since music should be like existing RTP traffic, and then should be forward like voice traffic which is working!
I suspect a H323 capabilities problem, but I'm a little bit lost to troubleshoot this.
Does somebody have any idea?