<HTML><BODY>You need send reply with Reverse rtp_manage functions. Now you sending with hte same handling as request going to Kamailio. You use WS-UDP handling for inwite and WS-UDP handling for reply. You must use WS-UDP to requests and UDP-WS to replyes<br><br><br>Четверг, 28 мая 2015, 9:02 -07:00 от Vasiliy Ganchev <vasiliy.ganchev@wildix.com>:<br>
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<div id="style_14328289680000000582_BODY">Hello list!<br>
Have some difficulties with RTPengine:<br>
My test scheme is: UA(WS) -> Kamailio (WS proxy) -> Kamailio (SIP REGISTRAR,<br>
proxy) -> ASTERISK (media server) -> UA (SIP)<br>
Kamailio (WS) use RTPengine.<br>
<br>
Kamailio (WS proxy) - 4.2.3<br>
Kamailio (SIP REGISTRAR, proxy) - 4.1.4<br>
RTPengine - 3.3.0.0+0~mr3.8.0.0<br>
<br>
<br>
I make a test call and have troubles in negotiation between UA(WS) -><br>
Kamailio (WS proxy):<br>
UA(WS) -> INVITE -> Kamailio WS <br>
......<br>
rtpengine_manage("trust-address replace-origin replace-session-connection<br>
ICE=force");<br>
......<br>
this INVITE consists in SDP section a=fingerprint:sha-256......<br>
<br>
<br>
When Kamailio (WS) receives 200 OK, it is also handled by RTPengine<br>
.......<br>
rtpengine_manage("trust-address replace-origin replace-session-connection<br>
ICE=force");<br>
.......<br>
but UA (WS) receives 200OK without fingerprint, and log an error:<br>
<br>
Failed to set remote answer sdp: Called with SDP without DTLS fingerprint.<br>
<br>
Currently spend a lot of time reading Kamailio/RTPengine<br>
documentation/mail-list - but without success<br>
If someone have some hints, I would appreciate any help.<br>
<br>
<br>
<br>
--<br>
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