About H.323

[RajaSravanakumar Mallela]

Hi,

    I am working on testing scenarios involving H.323.I am making a call from CUCM 6.1 to CUCM 4.3 with a Session Border controller in the middle.Both the Cucm are connected to Session Border controller and the call is routed through it. I am able to hear voice from CUCM 6.1 but 4.3 is not working .It's like a one way call.I am not able to find what the issue is since I have the same configuration in both the cucm.Even the codec i have used in both the call are same.Please suggest me some troubleshooting tips to correct the same.

[gmatroni]

Try  Adding MTP. Check MTP Required on the H323 GW or ICT in CUCM, I think 6.x will allocate MTP if required and

4.x will not.