[Kamailio-Users] no RTP randomly with rtpproxy

[Omar Mendoza]

are you 100% the UDP ports 6000-up are open in your firewall?

appears mostly a firewall issue.

__________________________
Omar

On Jul 16, 2009, at 5:06 AM, Daniel-Constantin Mierla wrote:

> Hello,
>
> does the caller SDP come with a public IP? Otherwise, rtpproxy  
> learns the media IP when first rtp packet is sent.
>
> Cheers,
> Daniel
>
>
> On 09.07.2009 23:00 Uhr, Samuel Muller wrote:
>> A strange thing happens with RTP proxy since I compiled the v.1.2.0  
>> release ...
>>
>> Radomly, (approx. 1 time per 10 calls) RTP proxy don't grab the  
>> caller's original source IP in the SDP ???
>> So I don't have any RTP, so no sound during the call.
>>
>> typical call schema :
>> sip phone -> mitel ipbx -> kamailio -> audiocodes mediant 2000 ->  
>> pstn
>>
>> All the SIP headers and the SDP are ok each time ... the RTP ports  
>> are ok too, understood at each point.
>> rtp proxy is launched with these options with a public IP address  
>> (and compiled with a modified port range) :
>> /usr/sbin/rtpproxy -s udp:77.246.81.133 35000 -u rtpproxy rtpproxy - 
>> p /var/run/rtpproxy/rtpproxy.pid -l 77.246.81.133 -m 6000 -M 64000
>> kamailio is ok too in the config : kamailio  IPv4   UDP sip.720.fr: 
>> 46830->rtpproxy.720.fr:35000 <http://rtpproxy.720.fr:35000/>
>>
>> logs of RTP proxy (option -f to screen the debug) :
>>
>> # rtp ok :
>>
>> received command "29638_4 L 3962688592-61598521 at 10.33.146.4 <mailto:3962688592-61598521 at 10.33.146.4 
>> > 77.246.81.136 35000 0_3962688592-61598523;1 1c1320846358;1"
>> lookup on ports 6008/6010, session timer restarted
>> pre-filling callee's address with 77.246.81.136:35000 <http://77.246.81.136:35000/ 
>> >
>> sending reply "29638_4 6010 77.246.81.133
>> "
>> caller's address filled in: 94.198.149.41:50186 <http://94.198.149.41:50186/ 
>> > (RTP)
>> guessing RTCP port for caller to be 50187
>>
>> # rtp not ok :
>>
>> received command "29571_2 L 3288148592-61598465 at 10.33.146.4 <mailto:3288148592-61598465 at 10.33.146.4 
>> > 77.246.81.136 35000 0_3288148592-61598467;1 1c934295778;1"
>> lookup on ports 6000/6002, session timer restarted
>> pre-filling callee's address with 77.246.81.136:35000 <http://77.246.81.136:35000/ 
>> >
>> sending reply "29571_2 6002 77.246.81.133
>> "
>>
>> and hop, no "caller's address filled in" ...
>>
>> it's exactly the same type a SIP call (with the same ip phone,  
>> etc...).
>> I can precise that rtp proxy is running on the same machine that  
>> kamailio (v.1.4.4), but listen on a dedicated sub-if.
>>
>> Does someone knows something about that ? thanks !
>>
>>
>> .Samuel Muller.
>> sml at 720.fr <mailto:sml at 720.fr>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Kamailio (OpenSER) - Users mailing list
>> Users at lists.kamailio.org
>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>
> -- 
> Daniel-Constantin Mierla
> http://www.asipto.com/
>
>
> _______________________________________________
> Kamailio (OpenSER) - Users mailing list
> Users at lists.kamailio.org
> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>