[OpenSIPS-Users] Problem in sending outbound SIP messages via TLS

[Nachiket Tarate]

Hi,

I am currently trying to make Secure RTP calls between my SIP client and the
eyeBeam. When eyeBeam is configured for encrypted calls, it uses Secure RTP
for media and TLS for SIP signalling.

I have configured the OpenSIPs server with TLS support.

The scenario is as shown below:


 ----------------    UDP      ------------------    TLS    -------------
|  My SIP Client |  <----->  |  OpenSIPs Server | <-----> | eyeBeam 1.5 |
 ----------------             ------------------           -------------
  Linux Machine                Linux Machine             Widows XP machine

When a call is made from eyeBeam to My SIP client the call gets established
properly and the OpenSIPs server acts as a gateway.

But when a call is made from My SIP client to eyeBeam the OpenSIPs returns
the *477 Send failed* response to My SIP client.

By enabling the debug informaiton on OpenSIPs server, I found that it
couldn't do TLS handshake with the eyeBeam and so couldn't send the
SIP Request from My SIP client to the eyeBeam.

In brief the OpenSIPs server can accept the inbound messages via TLS but *it
can't send outbound messages via TLS*.

Can anybody help me to resolve this problem? Please see my opensips.cfg file
and OpenSIPs server logs attached with this mail.

Thanks,
NT
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