Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Phone rings over PRI but no voice on answer

Hi

I am installing a cisco voice GW 3845 with a PRI circuit . The gateway registers wih the CCM ok and we can make onnet call in the same region and between regions as well.

When i call over the PRI either incoming or outcoming the phone rings in both ends but the voice does not quick in.

I checked all the PRI parameters, controller and everything is ok.

I also check with a sniffer and i can mirror the ohone port and i can see the RTP traffc going through in the right vlan and in both ways.

Isdn q931 also is ok.

Auto QoS is enable

Can someone please help ?

1 REPLY

Re: Phone rings over PRI but no voice on answer

Do you have MGCP bound to an interface?

check and see if you have the following statements under your mgcp config:

mgcp bind control source-interface [interface you would like to bound mgcp to, usually loopback or ethernet]

mgcp bind media source-interface [interface you would like to bound mgcp to, usually loopback or ethernet]

Hope that helped.

124
Views
0
Helpful
1
Replies
CreatePlease to create content