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<div class="moz-cite-prefix">Muhammad,<br>
<br>
I don't know what the remote carrier is using for their RTP. I
set a custom nortpproxy_str to try and avoid this (instead of
leaving it as the default a=nortpproxy:yes). Is it correct for
them to leave our custom a=schipmangled:yes record in the SDP? I
have had problems with the "f" flag and failover routing
(basically rewrites the IP in the SDP twice like this
yyy.yyy.yyy.yyyyyy.yyy.yyy.yyy). Is there an easy way for me to
just remove the a=schipmangle:yes in my onreply_route?<br>
<br>
Thanks,<br>
Seth<br>
<br>
On 2/14/2013 8:28 PM, Muhammad Shahzad wrote:<br>
</div>
<blockquote
cite="mid:CAFZQphyL-+ajU8m-EPVEiGjChxu45s3wEqME4XH-SVCuB0_vDA@mail.gmail.com"
type="cite">You mean both you and your carrier are using their own
rtp-proxy? If so, then simply add "f" flag to rtpproxy_offer |
rtpproxy_answer. Which will allow you can you carrier to create a
chain of rtp-proxy together. See flags description here,<br>
<br>
<a moz-do-not-send="true"
href="http://www.opensips.org/html/docs/modules/devel/rtpproxy.html#id292744">http://www.opensips.org/html/docs/modules/devel/rtpproxy.html#id292744</a><br>
<br>
Thank you.<br>
<br>
<br>
<div class="gmail_quote">On Fri, Feb 15, 2013 at 2:18 AM, Seth
Schultz <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:sschultz@scholarchip.com" target="_blank">sschultz@scholarchip.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
I am having a problem with RTPProxy where in the reply, the
remote carrier is sending the "nortpproxy_str" in the reply
SDP (example below). I would like to know what the best way
is to detect this, and remove it from the sip message before
calling rtpproxy_answer function, because rtpproxy_answer will
fail if the nortpproxy_str already exists in the SDP.<br>
<br>
Thanks in advance,<br>
Seth<br>
<br>
U 2013/02/14 19:32:21.142567 yyy.yyy.yyy.yyy:5060 ->
xxx.xxx.xxx.xxx:5060<br>
INVITE <a class="moz-txt-link-abbreviated" href="mailto:sip:19999999999@xxx.xxx.xxx.xxx">sip:19999999999@xxx.xxx.xxx.xxx</a> SIP/2.0<br>
Via: SIP/2.0/UDP yyy.yyy.yyy.yyy:5060;branch=z9hG4bK2d9e.187ebf5.0<br>
Max-Forwards: 69<br>
From: "Unknown" <a class="moz-txt-link-rfc2396E" href="mailto:sip:19999999999@yyy.yyy.yyy.yyy"><sip:19999999999@yyy.yyy.yyy.yyy></a>;tag=33XjNy6SQZrQS<br>
To: <a class="moz-txt-link-rfc2396E" href="mailto:sip:19999999999@yyy.yyy.yyy.yyy"><sip:19999999999@yyy.yyy.yyy.yyy></a><br>
Call-ID: 004c5840-f1aa-1230-9c93-6320dec8e883<br>
CSeq: 40108106 INVITE<br>
Contact: <sip:yyy.yyy.yyy.yyy;did=3901.59b3bb21><br>
User-Agent: FS1<br>
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE,
INFO, REGISTER, REFER, NOTIFY<br>
Supported: timer, precondition, path, replaces<br>
Allow-Events: talk, hold, refer<br>
Content-Type: application/sdp<br>
Content-Disposition: session<br>
Content-Length: 247<br>
P-Call-Type: Notification<br>
X-FS-Support: update_display,send_info<br>
Remote-Party-ID: "Unknown" <a class="moz-txt-link-rfc2396E" href="mailto:sip:19999999999@yyy.yyy.yyy.yyy"><sip:19999999999@yyy.yyy.yyy.yyy></a>;party=calling;screen=yes;privacy=off<br>
<br>
v=0<br>
o=FreeSWITCH 1360855702 1360855703 IN IP4 yyy.yyy.yyy.yyy<br>
s=FreeSWITCH<br>
c=IN IP4 yyy.yyy.yyy.yyy<br>
t=0 0<br>
m=audio 40562 RTP/AVP 0 8 3 101<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-16<br>
a=silenceSupp:off - - - -<br>
a=ptime:20<br>
a=schipmangled:yes <--- rtpproxy added this on initial
invite<br>
<br>
...<br>
<br>
U 2013/02/14 19:32:37.425606 xxx.xxx.xxx.xxx:5060 ->
yyy.yyy.yyy.yyy:5060<br>
SIP/2.0 200 OK<br>
Via: SIP/2.0/UDP yyy.yyy.yyy.yyy:5060;branch=z9hG4bK2d9e.187ebf5.0<br>
From: "Unknown" <a class="moz-txt-link-rfc2396E" href="mailto:sip:19999999999@yyy.yyy.yyy.yyy"><sip:19999999999@yyy.yyy.yyy.yyy></a>;tag=33XjNy6SQZrQS<br>
To: <a class="moz-txt-link-rfc2396E" href="mailto:sip:19999999999@yyy.yyy.yyy.yyy"><sip:19999999999@yyy.yyy.yyy.yyy></a>;tag=SDs07f299-gK0e9f2e8d<br>
Call-ID: 004c5840-f1aa-1230-9c93-6320dec8e883<br>
CSeq: 40108106 INVITE<br>
Accept: application/sdp, application/isup, application/dtmf,
application/dtmf-relay, multipart/mixed<br>
Contact: <sip:xxx.xxx.xxx.xxx;did=39.60d51ef><br>
Allow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS<br>
Require: timer<br>
Supported: timer<br>
Session-Expires: 7200;refresher=uas<br>
Content-Length: 259<br>
Content-Disposition: session; handling=required<br>
Content-Type: application/sdp<br>
<br>
v=0<br>
o=Sonus_UAC 7607 20874 IN IP4 xxx.xxx.xxx.xxx<br>
s=SIP Media Capabilities<br>
c=IN IP4 xxx.xxx.xxx.xxx<br>
t=0 0<br>
m=audio 29772 RTP/AVP 0 101<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-16<br>
a=silenceSupp:off - - - -<br>
a=schipmangled:yes <--- they sent this back in the 200 OK
reply<br>
a=ptime:20<br>
a=sendrecv<br>
<br>
<br>
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<br clear="all">
<br>
-- <br>
<span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Muhammad
Shahzad</span><br
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">------------------------------</span><span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">-----</span><br
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">CISCO
Rich Media Communication Specialist (CRMCS)</span><br
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">CISCO
Certified Network Associate (CCNA)</span><br
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Cell: +49
176 99 83 10 85</span><br
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<span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">MSN: </span><a
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style="color:rgb(17,85,204);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"
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<span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Email: </span><a
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style="color:rgb(17,85,204);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"
target="_blank">shaheryarkh@googlemail.com</a>
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