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(a)10.33.146.4
<mailto:3962688592-61598521@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(a)10.33.146.4
<mailto:3288148592-61598465@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(a)720.fr <mailto:sml@720.fr>
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