No ring back on IP trunk

[FrankDK]

I have a BCM450 and a BCM400 with IP Trunk connection. When i make a call from the BCM450 the call is setup and the phone on the BCM400 rings. But i don't get any ringback on the BCM450. If the BCM400 pick up the phone the call is established.
Any idear to what the problem is

 

[DBrewsky]

OK.. Try this.. On the BCM400, setup a temporary destination code (Absorb All) and a new private route to your IP trunks with digits of the extension you've been testing with. Setup a gateway on the VoIP trunks to point back to the BCM with the digits you put in the digits you put in the newly created route.

Now, dial the temp destination code. What will happen is it will route out your IP trunks back to the BCM and start to ring the set. I do this to test AA's and phones themselves. Do you hear ringback now?

If no, what type of phones are being used on the BCM400?

--DB

http://support.csctech.us

 

[FrankDK]

I found the problem. It was the signalling ports that was blocked. Works fine again. Thanks