[SR-Users] No RTP between rtpproxy and smartphone application

[Daniel-Constantin Mierla]

Hello,

On 4/1/13 6:23 PM, aaaa aaaa wrote:
> Hello,
> I have the following topology.
> Kamailio as SIP Proxy and Asterisk as B2BUA. In Kamailio I use 
> rtpproxy for NAT users.
> The problem that I have is the following:
> -When the CSipSimple is registered the first call is always 
> unsuccesfull. The following calls are always successful. If the 
> application remains idle for a while the next call is unsuccessful 
> again. From traces I saw that everything is OK in signaling part.
> -When I try with Zoiper and 3CX I have 1/20 successful calls.
>
> In any case from Asterisk side these calls can be seen as active but 
> no media.
maybe providing the sip trace will help us to see if something is wrong 
there. Otherwise, it is hard to guess what is wrong, can be the nat 
router in front of the phones, doing 'smart' sip alg.

Cheers,
Daniel

>
> Thanx,
> Theo
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, April 16-17, 2013, Berlin
  - http://conference.kamailio.com -

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20130404/dc53d994/attachment.htm>