I have two Cisco 2901 routers with CME, DSP module and built-in poe switches. They are both linked together via Ethernet.
I have 2 phones connected to each router. Making calls between 2 phones on same router is working fine. I have set up dial peers and can place a call from a phone on router1 to a phone on router2. The phone rings fine but when I pick it up there is silence, I cannot hear audio between calls. When I hang up one phone the other one cuts off, so call setup seems to be working great.
I will post config tomorrow but wondered if there is a straightforward reason for this. Is it a codec issue? (I am using g729r8 in my dial peers currently.)