[Serusers] chain of rtp proxies ...

[Klaus Darilion]

Cesc wrote:
> On 12/9/06, Atle Samuelsen <clona at cyberhouse.no> wrote:
>> Hi Cesc,
>>
>> Thanks for VON.
> 
> It was my pleasure to meet all you guys ... I am hooked now. In my
> mind I have a background process trying to figure out how to go to the
> next one (San Diego? :D )
> 
>>
>> > I have a few questions ...
>> > - i saw mentioned that chaining is possible ... no problem there
>> > right? i need to send an extra parameter to the force_rtp_proxy and
>> > that is it? no side-effects if, i.e, call between the phones in the
>> > same island (thus, just one rtp proxy)?
>>
>> This is possible, but you need to turn of the checking :) (there is a
>> modparam that checkes if there in the sdp sasys a=nortpproxy or
>> something like that.
>>
> 
> Ok ... i think is a parameter in force_rtp_proxy, right?

yes, you need the "f" flag (guess it is still the same in ser)

http://www.openser.org/docs/modules/1.1.x/nathelper#AEN275

> A final question ... basically thinking out loud (and writing it down) :)
> I read that rtpproxy won't start relaying until it got an rtp packet
> from both sides ... is it true? could this not cause problems,
> specially with chained rtpproxies, if say, i have one of the phones
> not sending rtp packets (say, it starts muted ... muted means no rtp
> packets)?


AFAIR rtpproxy is asynchronous until the first RTP packet from each side 
is received. Thus chaining should work.

regards
klaus

btw: rtpproxy also has some parameters:
http://cvs.berlios.de/cgi-bin/viewcvs.cgi/ser/rtpproxy/manpage.xml?rev=1.2&content-type=text/vnd.viewcvs-markup

also main.c wil show you that there are some more undocumented parameters.


> 
> 
> Cesc
> 
> 
>>
>> - Atle
>>
>> > Regards,
>> >
>> > Cesc
>> > _______________________________________________
>> > Serusers mailing list
>> > Serusers at lists.iptel.org
>> > http://lists.iptel.org/mailman/listinfo/serusers
>>
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-- 
Klaus Darilion
nic.at