Hi Shirley,

This kind of changes have no kind of effect on SER - SER does nor handle the media part(excepting when you use nathelper+RTPproxy). So, I think the problem is not SER related. Probably you should do some network dumps of the signalling messages and check if the IP addresses in SDP part are correct.

Best regards, Marian

Shirley Toh wrote:

Hi,

I have problem, my PSTN gateway is using different IP addresses for IP signalling and Media(RTP) signalling. When we make calls, the phone rings and calls is connected but no audio. Please advice what can be done. Thanks.

regards, shir

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