Hi,

I am using opensips 1.5.3 and the latest mediaproxy. I have a strange
issue with asterisk servers. Maybe somebody might have a hint where to
look.

The problem is reproducable with any asterisk server behind nat
(nat=yes). Calls in and out are working without any problem, RTP is
present, ringback is correct.

If I start a call to the asterisk server with an extension which makes a
dialout (call forwarding), which is simply a call in and a call out, the
calling side will hear no ringback and if the call is established, rtp
is send and received but could not be heared on both sides.



BR

Uwe


-- 

kiste lat: 54.322684, lon: 10.13586
|Time     | 10.20.142.140     | 192.168.0.251     | 10.20.142.151     |
|273,187  |         INVITE SDP ( g711A g711U telephone-event)          |        
           |SIP From: sip:[email protected]:5100 
To:sip:[email protected]:5100
|         |(5060)   ------------------>  (5060)   |                   |
|273,188  |         100 Trying|                   |                   |SIP 
Status
|         |(5060)   <------------------  (5060)   |                   |
|275,309  |         183 Session Progress SDP ( g711A telephone-eve...          
|                   |SIP Status
|         |(5060)   <------------------  (5060)   |                   |
|275,315  |                   |         RTP (g711A)                   |RTP Num 
packets:687  Duration:13.743s SSRC:0x7B79B77F
|         |                   |(12346)  ------------------>  (5486)   |
|283,320  |         200 OK SDP ( g711A telephone-event)          |              
     |SIP Status
|         |(5060)   <------------------  (5060)   |                   |
|283,344  |         ACK       |                   |                   |SIP 
Request
|         |(5060)   ------------------>  (5060)   |                   |
|289,067  |         BYE       |                   |                   |SIP 
Request
|         |(5060)   ------------------>  (5060)   |                   |
|289,067  |         200 OK    |                   |                   |SIP 
Status
|         |(5060)   <------------------  (5060)   |                   |
|Time     | 192.168.0.251     | 10.20.142.140     | 10.20.142.151     |
|273,642  |         INVITE SDP ( g711A telephone-event)          |              
     |SIP From: sip:[email protected] To:sip:[email protected]
|         |(5060)   ------------------>  (5060)   |                   |
|273,659  |         401 Unauthorized              |                   |SIP 
Status
|         |(5060)   <------------------  (5060)   |                   |
|273,659  |         ACK       |                   |                   |SIP 
Request
|         |(5060)   ------------------>  (5060)   |                   |
|273,659  |         INVITE SDP ( g711A telephone-event)          |              
     |SIP From: sip:[email protected] To:sip:[email protected]
|         |(5060)   ------------------>  (5060)   |                   |
|273,689  |         100 Giving a try              |                   |SIP 
Status
|         |(5060)   <------------------  (5060)   |                   |
|275,308  |         183 Session Progress SDP ( g711A telephone-eve...          
|                   |SIP Status
|         |(5060)   <------------------  (5060)   |                   |
|275,315  |         RTP (g711A)                   |                   |RTP Num 
packets:688  Duration:13.763s SSRC:0x2162742D
|         |(11166)  <--------------------------------------  (5612)   |
|278,207  |         180 Ringing                   |                   |SIP 
Status
|         |(5060)   <------------------  (5060)   |                   |
|283,320  |         200 OK SDP ( g711A telephone-event)          |              
     |SIP Status
|         |(5060)   <------------------  (5060)   |                   |
|283,320  |         ACK       |                   |                   |SIP 
Request
|         |(5060)   ------------------>  (5060)   |                   |
|289,068  |         BYE       |                   |                   |SIP 
Request
|         |(5060)   ------------------>  (5060)   |                   |
|289,095  |         200 OK    |                   |                   |SIP 
Status
|         |(5060)   <------------------  (5060)   |                   |
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