For file transfer you need an MSRP relay. AFAIK rtpproxy can not handle
MSRP.
See the MRSP module
http://kamailio.org/docs/modules/4.1.x/modules/msrp.html
regards
Klaus
On 29.01.2014 09:44, Wingsravi R wrote:
Dear Daniel & Kamailio'ns
I am working on File transferring feature between two SIP clients
(IMSDroid). I have configured Kamailio (4.0.4) sever with RTPproxy to
get the through NAT traversal of audio/videov calls. so fro that i added
a script in kamailio.cfg as like below (Forced all INVITES through
RTPproxy) :
if (is_method("INVITE")) {
setflag(7); # Set the qos flag
#if (has_sdp()) {
if(has_body("application/sdp")) {
if (rtpproxy_offer())
t_on_reply("1");
} else {
t_on_reply("2");
}
}
#if (is_method("ACK") && has_sdp())
if (is_method("ACK") &&
has_body("application/sdp"))
rtpproxy_answer();
..
..
onreply_route[1] {
# if (has_sdp())
if(has_body("application/sdp"))
rtpproxy_answer();
}
onreply_route[2] {
# if (has_sdp())
if(has_body("application/sdp"))
rtpproxy_offer();
}
But now when i am trying for File transferring (As per RFC 4975, Session
mode IM) their INVITEs are also passing through RTPProxy service, which
is dropping MSRP contents and with that Files are not getting
transferring (But session is establishing between two clients).
And when i tried file transferring without running RTPPproxy service.
files are getting transferring. but that gives problems for audio/video
calls.
So anybody please help me in how to make it work for both MSRP&RTP packets.
I mean how can i modify the script so that INVITE messges contains
MSRP-RTP contents can be descriminate in the script, and then they can
execute their respective blocks of scripts.
And please find the attachments of my Kamailio.cfg file and file
transfer traffic capture (tcpdump based) with RTPproxy instance running
and without running.
Any help will greatly appreciate.
Awaiting for somebody's help.
Regards
Ravi
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