Hi,

I'm currently setting op an openser server. My setup at the moment is as follows:

registrar (pstn) <=> yate (sip server) <=> openser <=> sip_phone.

As I make a call with the sip phone to a pstn line, the rtp stream is forwarded from the yate server to openser, which acts as en media proxy with rtpproxy. During the call I get very annoying beeps every 2 or 3 seconds.

The beeps sound a bit like cost-beeps or somethin.

When I connect the phone directly to the yate server however, which then starts acting as media-proxy, I do not get any beeps.

Furthermore, if I remove force_rtp_forward() from openser config, it stops being proxy for the stream, but still I get these annoying beeps. Excluding any problems with rtpproxy.

Clearly, the registrar sends these beeps, but he doesn't send them when I connect with yate. Am I missing something that can trigger this behaviour?

Thanks,

Marc Dirix