[SR-Users] Kamailio rtpengine sdp

Daniel-Constantin Mierla miconda at gmail.com
Wed Apr 19 11:28:15 CEST 2017


Hello,

you have to instruct rtpengine to do bridging between the two network
interfaces.

Can you show the INVITE and the 200ok with all SDPs, both sides
(incoming and outgoing to/from kamailio),  for the case you get audio
problem? Then we can confirm if the SDP has been updated properly for
bridging.

Cheers,
Daniel


On 18.04.17 17:23, gerry kernan wrote:
>
> Hi
>
>  
>
> Thanks in advance if anyone can point me in the correct direction .
>
> I have kamailio running in front of some asterisk VM’s.  SIP endpoint
> register to their asterisk PBX via Kamailio dispatcher module. I’m
> running rtpengine with a Wan and private interface to bridge audio
> stream between these endpoints on the WAN to asterisk PBX running on
> LAN IP behind Kamailio.
>
> Calls from ext to ext work fine audio both directions , calls outbound
> to PSTN via SIP trunk to SIP provider via trunk on asterisk work fine
> audio both directions. But incoming calls via SIP provider I only get
> audio on stream from asterisk registered ext to external caller , no
> audio from external caller to the asterisk ext.
>
> I reckon I have something wrong in my Kamailio.cfg . if I register an
> ext direct to asterisk I get audio both ways on incoming calls. And
> rtp logs from rtpenegine show it as trying to send the rtp to the
> private address of the sip endpoint rather that its WAN address.
>
> I think my mistake in somewhere in the cfg below.
>
> Do I need to handle invites from the backend asterisk servers
> different that invites from sip endpoints?
>
>  
>
>  
>
>  
>
> *Gerry Kernan*
>
>  
>
> cid:image001.jpg at 01D105A5.2701B0E0
>
>  
>
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>
> *Tel:  +353 - (0)1 - 293 0090   |   E-Mail: 
> *gerry.kernan at infinityit.ie <mailto:gerry.kernan at infinityit.ie>**
>
> * *
>
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> <http://www.infinityit.ie/>
>
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>
>  
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-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - May 22-24 (USA) - www.asipto.com
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com

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