Call flow for VG310 configured in CUCM with MGCP

[Pointbreak]

Hi Experts,

I configured FXS port of VG310 in CUCM with MGCP. Want to know the call flow?

I configured a FXS a port with extension 1234 at port 0/0/1. In the  VG310 end MGCP configuration is perfect. And configured a DP for the above port where it reflects mgcpapp .

Can you help me to understand the exact call flow here if someone calls 1234?

[Georgios Fotiadis]

With MGCP all signalling and call routing is handled by CUCM and not the gateway, as is the case with SIP or H.323.

This is a brief document that will help you better understand: Understanding MGCP Interactions with Cisco CallManager.

[R0g22]

When 1234 is dialed, CUCM DA will return the MGCP end point which is the FXS port on the VG 310. CUCM will send a CRCX to initiate the call with the GW.