Need Help urgently H323 VOIP Problem

Unanswered Question
Jul 14th, 2009


I have created a very simple dial-peer config shown below

dial-peer voice 200 voip

destination-pattern 8.T

session target ras

dtmf-relay h245-alphanumeric

Here is the problem, I used a Cisco 7960 IP Phone to make a call to my destination 8123, the other side IP phone rings, when we picked up the phone, the originating phone is still ringing but the destination phone shows connected.

Can some one please help. Thanks


I have this problem too.
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Nicholas Matthews Tue, 07/14/2009 - 12:10

Hi Damian,

This likely means that your signaling is getting blocked somewhere in the middle of your network. I would try removing any firewalls or ACLs to confirm.

Firewalls will do a number on H323 communication.


damiangoh Tue, 07/14/2009 - 17:50


I have already put the following firewall rules

Any to CUCM network and IP Phone NEtwork permit

CUCM network and IP Phone network to Any permit

So I dont know what else is causing this.



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