[OpenSIPS-Users] inconsistence nathelper behavior

[Razvan Crainea]

Hello Leon,

As you can see, OpenSIPS receives an invalid port from RTPProxy, so the 
problem seems to be there. Can you please set a lower debug level for 
RTPProxy and paste me the log for this call?

Regards,
Razvan

On 03/24/2011 02:35 AM, Leon Li wrote:
>
> Hello all,
>
> I've got a problem of one way voice when making a call from a public 
> side to private side, where the callee on private side can't hear 
> caller from public side. However, if the call is initialled from 
> private side, everything is fine.
>
> Here is my topology.
>
> EP1 (public IP) à Cisco CUCM (public IP) à OpenSIPs (public IP with 
> rtpproxy) ß Home router (NATed) ß EP2 (private IP).
>
> After enabled the debug as below, I found when EP1 calls EP2, 
> nathelper request a rtpproxy port but received an "0".
>
> Mar 23 23:44:22 [23719] DBG:nathelper:force_rtp_proxy: Forcing body:
>
> [v=0
>
> o=xxxxxxxxxxxxx 8000 8000 IN IP4 192.168.1.112
>
> s=SIP Call
>
> c=IN IP4 192.168.1.112
>
> t=0 0
>
> m=audio 49866 RTP/AVP 0 8 18 9 101
>
> a=sendrecv
>
> a=rtpmap:0 PCMU/8000
>
> a=ptime:20
>
> a=rtpmap:8 PCMA/8000
>
> a=rtpmap:18 G729/8000
>
> a=fmtp:18 annexb=no
>
> a=rtpmap:9 G722/8000
>
> a=rtpmap:101 telephone-event/8000
>
> a=fmtp:101 0-15
>
> m=video 21778 RTP/AVP 99 100 34
>
> b=AS:384
>
> a=sendrecv
>
> a=rtpmap:99 H264/90000
>
> a=fmtp:99 profile-level-id=428014; packetization-mode=0; 
> sprop-parameter-sets=Z0KADJWgUH5A,aM4Ecg==
>
> a=rtpmap:100 H263-1998/90000
>
> a=fmtp:100 CIF=1; QCIF=1
>
> a=rtpmap:34 H263/90000
>
> a=fmtp:34 CIF=1; QCIF=1]
>
> Mar 23 23:44:22 [23719] DBG:core:parse_headers: flags=40
>
> Mar 23 23:44:22 [23719] DBG:core:parse_to_param: 
> tag=7d81dea5-6b91-4499-b7a2-77dff783a179-43138246
>
> Mar 23 23:44:22 [23719] DBG:core:parse_to: end of header reached, state=29
>
> Mar 23 23:44:22 [23719] DBG:core:parse_to: display={"Leon Li"}, 
> ruri={sip:3537 at 202.158.207.34}
>
> *Mar 23 23:44:22 [23719] DBG:nathelper:force_rtp_proxy_body: proxy 
> reply: 0*
>
> *Mar 23 23:44:22 [23719] ERROR:nathelper:force_rtp_proxy_body: 
> incorrect port 0 in reply from rtp proxy*
>
> In the debug on calls from EP2 to EP1, I got
>
> Mar 24 00:06:02 [24298] DBG:nathelper:force_rtp_proxy_body: proxy 
> reply: 48334
>
> Mar 24 00:06:02 [24298] DBG:nathelper:force_rtp_proxy_body: proxy 
> reply: 48126
>
> Can anyone shed some lights on what could be wrong?
>
> Thanks,
>
> Leon
>
>
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