Re: [OpenSBC] Registrations

[Joegen E. B. <joe...@gm...>]

The log indicates that everything is well.   There are a lot of things 
that can go wrong with audio which are outside of OpenSBC control.   
What you can do to verify where the fault is, is to get your favorite 
packet sniffer out of the tool box and check whether both your phones 
are sending RTP and if OpenSBC are relaying the packets correctly and 
reaching the destination.    Another cause of audio problems are codec 
related issues.  I can see that your phone negotiated G.729.  Can you 
test jsut using plain old G.711 and see if you get bidirectional audio.  
If you do, then you might want to check the TX packetization interval of 
G.729 on both your phones to properly match.   20 ms is a good ptime 
value for G.729.


Jonas Gauffin wrote:
> I'm not really sure what you mean by "media anchor".
>
> I got 2 phones and an opensbc on my private lan, then I have a router
> which forwards sip/rtp to opensbc.
> When I call from one of the phones to the other (through opensbc) I
> get audio one way only (check the attached log)
>
> As for external calls, I'm willing to do a "hack" to get it working. I
> guess it involves modifying the IP in SDP, Via header and Contact
> header.
> Some directions would be really appreciated.
>
> On Jan 17, 2008 9:28 AM, Joegen E. Baclor <joe...@gm...> wrote:
>   
>> Jonas Gauffin wrote:
>>     
>>> Hello
>>>
>>> I got a opensbc listening on it's local ip address (192.168.1.102).
>>> How do I make opensbc handle my domain (let's say "domain.com")?
>>>
>>>       
>> Wait.  Are you trying to use OpenSBC as a media anchor from within your
>> NAT?   If that's what you are intending to do, then I hate to disappoint
>> you that this is not possible with OpenSBC.  OpenSBC needs to be in a
>> public space for it to sucessfully anchor media.
>>
>>
>>     
>>> Regards,
>>>   Jonas
>>>
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