This isn't the answer I was looking for :)<div><br class="webkit-block-placeholder"></div><div>I'm going to try and see if I can turn off loop detection on my porta system.</div><div><br class="webkit-block-placeholder">
</div><div>-Daniel<br><br><div class="gmail_quote">On Dec 10, 2007 8:05 PM, Alex Balashov <<a href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>No, because OpenSER, by definition, is not a user agent, but a proxy, and<br>only user agents generate call legs.<br><br>There may be a way to fudge it by mangling all the appropriate SIP<br>header features, but it would be almost ontologically contradictory. :-)
<br><br>I ran into this myself trying to loop back calls into a MetaSwitch<br>with some dialed-digit transformations. Ended up having to use a B2BUA<br>like Asterisk.<br><div><div></div><div class="Wj3C7c"><br>On Mon, 10 Dec 2007, Daniel Corbe wrote:
<br><br>> Is there a way to generate a new call leg in openser?<br>><br>> On Dec 10, 2007 7:03 PM, Alex Balashov <<a href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>> wrote:<br>><br>
>><br>>><br>>> And probably a new call-ID as well. In other words, you'd probably need<br>>> all the logical elements of a distinct call leg, per the RFC; the source<br>>> of application you'd want to use a back-to-back user agent for if you
<br>>> weren't using OpenSER.<br>>><br>>><br>>> On Mon, 10 Dec 2007, Daniel Corbe wrote:<br>>><br>>>> I have a problem. I'm taking INVITES from a PortaSIP proxy and handing<br>
>> it<br>>>> back with a new request URI and To: header; however, their loop<br>>>> detection algorithm is calling this a loop.<br>>>> Is there a way to fix this from within OpenSER? I'm assuming my proxy
<br>>> would<br>>>> have to send an INVITE with a completely new branch tag and From tag?<br>>>><br>>>> 10 Dec 14:52:30.831/GLOBAL/b2bua: SENDING message to <a href="http://206.71.169.114:5060" target="_blank">
206.71.169.114:5060</a><br>>> :<br>>>> INVITE sip:*94310@206.71.169.114:5060 SIP/2.0<br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a><br>>>> ;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport
<br>>>> Max-Forwards: 70<br>>>> From: <<a href="mailto:sip:18589520696@216.151.143.69">sip:18589520696@216.151.143.69</a><br>>>> ;tag=3b383c39c2bc93d8106f4425074ef399<br>>>> To: <
<a href="mailto:sip:*94310@206.71.169.114">sip:*94310@206.71.169.114</a>><br>>>> Call-ID: 722814-3406315950-714741@msx69.mydomain.com~1o<br>>>> CSeq: 200 INVITE<br>>>> Contact: Anonymous <sip:
<a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a>><br>>>> Expires: 300<br>>>> User-Agent: Sippy<br>>>> cisco-GUID: 2108088383-2809270748-2290810900-572575638<br>>>> h323-conf-id: 2108088383-2809270748-2290810900-572575638
<br>>>> Content-Length: 201<br>>>> Content-Type: application/sdp<br>>>> v=0<br>>>> o=Sippy 156402124 0 IN IP4 <a href="http://216.151.143.69" target="_blank">216.151.143.69</a><br>>>> s=sip call
<br>>>> t=0 0<br>>>> m=audio 42486 RTP/AVP 18 0 8<br>>>> c=IN IP4 <a href="http://216.151.143.77" target="_blank">216.151.143.77</a><br>>>> a=rtpmap:8 PCMA/8000<br>>>> a=rtpmap:0 PCMU/8000
<br>>>> a=rtpmap:18 G729/8000<br>>>> a=sendrecv<br>>>><br>>>> 10 Dec 14:52:30.841/GLOBAL/b2bua: RECEIVED message from<br>>> <a href="http://206.71.169.114:5060" target="_blank">206.71.169.114:5060
</a>:<br>>>> SIP/2.0 100 Giving a try<br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a><br>>>> ;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
<br>>>> From: <<a href="mailto:sip:18589520696@216.151.143.69">sip:18589520696@216.151.143.69</a><br>>>> ;tag=3b383c39c2bc93d8106f4425074ef399<br>>>> To: <<a href="mailto:sip:*94310@206.71.169.114">
sip:*94310@206.71.169.114</a>><br>>>> Call-ID: 722814-3406315950-714741@msx69.mydomain.com~1o<br>>>> CSeq: 200 INVITE<br>>>> Server: OpenSER (1.2.2-notls (i386/freebsd))<br>>>> Content-Length: 0
<br>>>><br>>>> 10 Dec 14:52:30.842/GLOBAL/ser[69804]: RECEIVED message from<br>>>> <a href="http://206.71.169.114:5060" target="_blank">206.71.169.114:5060</a>:<br>>>> INVITE sip:1a10000000009@216.151.143.69
:5060 SIP/2.0<br>>>> Record-Route: <sip:<a href="http://206.71.169.114" target="_blank">206.71.169.114</a><br>>>> ;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52><br>>>> Via: SIP/2.0/UDP
<a href="http://206.71.169.114" target="_blank">206.71.169.114</a>;branch=z9hG4bK961c.41ea57a.0<br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a><br>>>> ;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
<br>>>> Max-Forwards: 69<br>>>> From: <<a href="mailto:sip:18589520696@216.151.143.69">sip:18589520696@216.151.143.69</a><br>>>> ;tag=3b383c39c2bc93d8106f4425074ef399<br>>>> To: <
sip:1a10000000009@216.151.143.69:5060><br>>>> Call-ID: 722814-3406315950-714741@msx69.mydomain.com~1o<br>>>> CSeq: 200 INVITE<br>>>> Contact: Anonymous <sip:<a href="http://216.151.143.69:5061" target="_blank">
216.151.143.69:5061</a>><br>>>> Expires: 300<br>>>> User-Agent: Sippy<br>>>> cisco-GUID: 2108088383-2809270748-2290810900-572575638<br>>>> h323-conf-id: 2108088383-2809270748-2290810900-572575638
<br>>>> Content-Length: 201<br>>>> Content-Type: application/sdp<br>>>> P-hint: rr-enforced<br>>>> v=0<br>>>> o=Sippy 156402124 0 IN IP4 <a href="http://216.151.143.69" target="_blank">
216.151.143.69</a><br>>>> s=sip call<br>>>> t=0 0<br>>>> m=audio 42486 RTP/AVP 18 0 8<br>>>> c=IN IP4 <a href="http://216.151.143.77" target="_blank">216.151.143.77</a><br>>>> a=rtpmap:8 PCMA/8000
<br>>>> a=rtpmap:0 PCMU/8000<br>>>> a=rtpmap:18 G729/8000<br>>>> a=sendrecv<br>>>><br>>>> 10 Dec 14:52:30.842/722814-<a href="mailto:3406315950-714741@msx69.mydomain.com">3406315950-714741@msx69.mydomain.com
</a><br>>> ~1o/ser[69804]:<br>>>> processing INVITE received from <a href="http://206.71.169.114" target="_blank">206.71.169.114</a><br>>>> 10 Dec 14:52:30.843/GLOBAL/ser[69804]: SENDING message to
<br>>>> <a href="http://206.71.169.114:5060" target="_blank">206.71.169.114:5060</a>:<br>>>> SIP/2.0 100 trying -- your call is important to us<br>>>> Via: SIP/2.0/UDP <a href="http://206.71.169.114" target="_blank">
206.71.169.114</a>;branch=z9hG4bK961c.41ea57a.0<br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a><br>>>> ;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
<br>>>> From: <<a href="mailto:sip:18589520696@216.151.143.69">sip:18589520696@216.151.143.69</a><br>>>> ;tag=3b383c39c2bc93d8106f4425074ef399<br>>>> To: <sip:1a10000000009@216.151.143.69:5060>
<br>>>> Call-ID: 722814-3406315950-714741@msx69.mydomain.com~1o<br>>>> CSeq: 200 INVITE<br>>>> Server: Sip EXpress router (0.9.6 (i386/freebsd))<br>>>> Content-Length: 0<br>>>>
<br>>>> 10 Dec 14:52:30.844/GLOBAL/ser[69804]: SENDING message to<br>>>> <a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a>:<br>>>> INVITE sip:1a10000000009@216.151.143.69
:5061 SIP/2.0<br>>>> Record-Route: <sip:<a href="http://216.151.143.69" target="_blank">216.151.143.69</a><br>>> ;ftag=3b383c39c2bc93d8106f4425074ef399;lr><br>>>> Record-Route: <sip:<a href="http://206.71.169.114" target="_blank">
206.71.169.114</a><br>>>> ;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52><br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69" target="_blank">216.151.143.69</a>;branch=<br>>>>
z9hG4bK961c.003d31266db19cfeb34aa550d186a976.0<br>>>> Via: SIP/2.0/UDP <a href="http://206.71.169.114" target="_blank">206.71.169.114</a>;branch=z9hG4bK961c.41ea57a.0<br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69:5061" target="_blank">
216.151.143.69:5061</a><br>>>> ;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061<br>>>> Max-Forwards: 16<br>>>> From: <<a href="mailto:sip:18589520696@216.151.143.69">sip:18589520696@216.151.143.69
</a><br>>>> ;tag=3b383c39c2bc93d8106f4425074ef399<br>>>> To: <sip:1a10000000009@216.151.143.69:5060><br>>>> Call-ID: 722814-3406315950-714741@msx69.mydomain.com~1o<br>>>> CSeq: 200 INVITE
<br>>>> Contact: Anonymous <sip:<a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a>><br>>>> Expires: 300<br>>>> User-Agent: Sippy<br>>>> cisco-GUID: 2108088383-2809270748-2290810900-572575638
<br>>>> Content-Length: 201<br>>>> Content-Type: application/sdp<br>>>> P-hint: rr-enforced<br>>>> v=0<br>>>> o=Sippy 156402124 0 IN IP4 <a href="http://216.151.143.69" target="_blank">
216.151.143.69</a><br>>>> s=sip call<br>>>> t=0 0<br>>>> m=audio 42486 RTP/AVP 18 0 8<br>>>> c=IN IP4 <a href="http://216.151.143.77" target="_blank">216.151.143.77</a><br>>>> a=rtpmap:8 PCMA/8000
<br>>>> a=rtpmap:0 PCMU/8000<br>>>> a=rtpmap:18 G729/8000<br>>>> a=sendrecv<br>>>><br>>>> 10 Dec 14:52:30.844/GLOBAL/b2bua: RECEIVED message from<br>>> <a href="http://216.151.143.69:5060" target="_blank">
216.151.143.69:5060</a>:<br>>>> INVITE sip:1a10000000009@216.151.143.69:5061 SIP/2.0<br>>>> Record-Route: <sip:<a href="http://216.151.143.69" target="_blank">216.151.143.69</a><br>>> ;ftag=3b383c39c2bc93d8106f4425074ef399;lr>
<br>>>> Record-Route: <sip:<a href="http://206.71.169.114" target="_blank">206.71.169.114</a><br>>>> ;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52><br>>>> Via: SIP/2.0/UDP
<a href="http://216.151.143.69" target="_blank">216.151.143.69</a>;branch=<br>>>> z9hG4bK961c.003d31266db19cfeb34aa550d186a976.0<br>>>> Via: SIP/2.0/UDP <a href="http://206.71.169.114" target="_blank">206.71.169.114
</a>;branch=z9hG4bK961c.41ea57a.0<br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a><br>>>> ;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061<br>
>>> Max-Forwards: 16<br>>>> From: <<a href="mailto:sip:18589520696@216.151.143.69">sip:18589520696@216.151.143.69</a><br>>>> ;tag=3b383c39c2bc93d8106f4425074ef399<br>>>> To: <sip:1a10000000009@216.151.143.69
:5060><br>>>> Call-ID: 722814-3406315950-714741@msx69.mydomain.com~1o<br>>>> CSeq: 200 INVITE<br>>>> Contact: Anonymous <sip:<a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061
</a>><br>>>> Expires: 300<br>>>> User-Agent: Sippy<br>>>> cisco-GUID: 2108088383-2809270748-2290810900-572575638<br>>>> Content-Length: 201<br>>>> Content-Type: application/sdp
<br>>>> P-hint: rr-enforced<br>>>> v=0<br>>>> o=Sippy 156402124 0 IN IP4 <a href="http://216.151.143.69" target="_blank">216.151.143.69</a><br>>>> s=sip call<br>>>> t=0 0<br>>>> m=audio 42486 RTP/AVP 18 0 8
<br>>>> c=IN IP4 <a href="http://216.151.143.77" target="_blank">216.151.143.77</a><br>>>> a=rtpmap:8 PCMA/8000<br>>>> a=rtpmap:0 PCMU/8000<br>>>> a=rtpmap:18 G729/8000<br>>>> a=sendrecv
<br>>>><br>>>> 10 Dec 14:52:30.847/GLOBAL/b2bua: SENDING message to <a href="http://216.151.143.69:5060" target="_blank">216.151.143.69:5060</a><br>>> :<br>>>> SIP/2.0 482 Loop Detected<br>
>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69" target="_blank">216.151.143.69</a>;branch=<br>>>> z9hG4bK961c.003d31266db19cfeb34aa550d186a976.0<br>>>> Via: SIP/2.0/UDP <a href="http://206.71.169.114" target="_blank">
206.71.169.114</a>;branch=z9hG4bK961c.41ea57a.0<br>>>> Via: SIP/2.0/UDP <a href="http://216.151.143.69:5061" target="_blank">216.151.143.69:5061</a><br>>>> ;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
<br>>>> Record-Route: <sip:<a href="http://216.151.143.69" target="_blank">216.151.143.69</a><br>>> ;ftag=3b383c39c2bc93d8106f4425074ef399;lr><br>>>> Record-Route: <sip:<a href="http://206.71.169.114" target="_blank">
206.71.169.114</a><br>>>> ;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52><br>>>> From: <<a href="mailto:sip:18589520696@216.151.143.69">sip:18589520696@216.151.143.69</a><br>>>> ;tag=3b383c39c2bc93d8106f4425074ef399
<br>>>> To: <sip:1a10000000009@216.151.143.69:5060><br>>>> Call-ID: 722814-3406315950-714741@msx69.mydomain.com~1o<br>>>> CSeq: 200 INVITE<br>>>> Server: Sippy<br>>>><br>
>><br>>> --<br>>> Alex Balashov<br>>> Evariste Systems<br>>> Web : <a href="http://www.evaristesys.com/" target="_blank">http://www.evaristesys.com/</a><br>>> Tel : +1-678-954-0670
<br>>> Direct : +1-678-954-0671<br>>><br>><br><br></div></div>--<br><div><div></div><div class="Wj3C7c">Alex Balashov<br>Evariste Systems<br>Web : <a href="http://www.evaristesys.com/" target="_blank">http://www.evaristesys.com/
</a><br>Tel : +1-678-954-0670<br>Direct : +1-678-954-0671<br></div></div></blockquote></div><br></div>