Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
We have probably 30-40 fax machines running T.38 between Linksys SPA-3102 and Cisco gateways. We have a pretty good success rate and we have been doing this for probably 2-3 years. We have a couple of them going thru an * 1.4 box and it seems to work ok. One of my projects is to try and get them all converted to go thru an FS box, I just haven't had time. Our biggest issues have always been error correction. Once we disable that on the fax machine, it seems to work pretty good. As a general rule, we have found that older cheaper machines work better. New fancy machines are unreliable and that could certainly be related to v.34 issues, but we haven't bothered to get that into it to find out. Peder -Original Message- From: freeswitch-users-boun...@lists.freeswitch.org [mailto:freeswitch-users-boun...@lists.freeswitch.org] On Behalf Of Gabriel Kuri Sent: Thursday, October 22, 2009 2:29 PM To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] Proxy media mode with T.38 re-invite AFAIK T.38 v2 supports a max speed of 14.4 anyhow, so that's the max speed you'll ever see in the SDP. T.38 v3 supposedly supports v.34 speeds, however no one that I've seen has implemented it yet - not sure it's even an official standard? Yes, in my experience, v.34 capable FAXes do not properly negotiate down to 14.4 speeds, we've always had to disable v.34 (or whatever the option is called on your particular make/model to force it down to 14.4 or slower speeds). We use the Cisco/Linksys ATAs - I've heard there's better ATAs out there that properly negotiate the FAX down to 14.4 on the T.30 side of the connection, but never had a chance to play with them. I'd certainly be interested to hear anyone's experience with T.38 reliability and various combinations of FAX machines and make/model of ATAs. Gabe Kristian Kielhofner wrote: > Gabe, > > I don't think any of them are plus the T.38 SDP tells me the bitrate > is 14400, certainly not V.34 speed. > > Are you saying the machine even trying to negotiate V.34 poses a problem? > > On Thu, Oct 22, 2009 at 2:16 PM, Gabriel Kuri wrote: >> Out of curiosity, is it a Super G3 (ie v.34) capable FAX? We've had >> nothing but intermittent problems with Super G3 FAXes over T.38, unless >> v.34 is strictly turned off on the machine. >> >> Gabe >> > ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
well, my experience with T.38 is that we switched it off within our network and now use passthrough instead :P. the reason: - new fax machines that defaults to v.34 and on some you cannot disable SG3 at all... just imagine what pain it is to produce a how to disable V.34 manual for every damn fax machine - a variety of T.30 <> T.38 mapping issues, broken GWs/ATAs that don't do a correct encoding/decoding expectantly when it comes to a terminating fax server that doesn't send a proper EOP... God save our souls... - our network has very low jitter - up to 40 ms , so passthrough works perfect - bandwidth become cheap :=) - and ... don't even remember any fax issues after shutdown T.38 i could go with the list... but i suppose you have better things to do :P T. On Thu, Oct 22, 2009 at 9:29 PM, Gabriel Kuri wrote: > AFAIK T.38 v2 supports a max speed of 14.4 anyhow, so that's the max > speed you'll ever see in the SDP. T.38 v3 supposedly supports v.34 > speeds, however no one that I've seen has implemented it yet - not sure > it's even an official standard? > > Yes, in my experience, v.34 capable FAXes do not properly negotiate down > to 14.4 speeds, we've always had to disable v.34 (or whatever the option > is called on your particular make/model to force it down to 14.4 or > slower speeds). We use the Cisco/Linksys ATAs - I've heard there's > better ATAs out there that properly negotiate the FAX down to 14.4 on > the T.30 side of the connection, but never had a chance to play with them. > > I'd certainly be interested to hear anyone's experience with T.38 > reliability and various combinations of FAX machines and make/model of > ATAs. > > Gabe > > Kristian Kielhofner wrote: > > Gabe, > > > > I don't think any of them are plus the T.38 SDP tells me the bitrate > > is 14400, certainly not V.34 speed. > > > > Are you saying the machine even trying to negotiate V.34 poses a > problem? > > > > On Thu, Oct 22, 2009 at 2:16 PM, Gabriel Kuri wrote: > >> Out of curiosity, is it a Super G3 (ie v.34) capable FAX? We've had > >> nothing but intermittent problems with Super G3 FAXes over T.38, unless > >> v.34 is strictly turned off on the machine. > >> > >> Gabe > >> > > > > > ___ > FreeSWITCH-users mailing list > FreeSWITCH-users@lists.freeswitch.org > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org > ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
AFAIK T.38 v2 supports a max speed of 14.4 anyhow, so that's the max speed you'll ever see in the SDP. T.38 v3 supposedly supports v.34 speeds, however no one that I've seen has implemented it yet - not sure it's even an official standard? Yes, in my experience, v.34 capable FAXes do not properly negotiate down to 14.4 speeds, we've always had to disable v.34 (or whatever the option is called on your particular make/model to force it down to 14.4 or slower speeds). We use the Cisco/Linksys ATAs - I've heard there's better ATAs out there that properly negotiate the FAX down to 14.4 on the T.30 side of the connection, but never had a chance to play with them. I'd certainly be interested to hear anyone's experience with T.38 reliability and various combinations of FAX machines and make/model of ATAs. Gabe Kristian Kielhofner wrote: > Gabe, > > I don't think any of them are plus the T.38 SDP tells me the bitrate > is 14400, certainly not V.34 speed. > > Are you saying the machine even trying to negotiate V.34 poses a problem? > > On Thu, Oct 22, 2009 at 2:16 PM, Gabriel Kuri wrote: >> Out of curiosity, is it a Super G3 (ie v.34) capable FAX? We've had >> nothing but intermittent problems with Super G3 FAXes over T.38, unless >> v.34 is strictly turned off on the machine. >> >> Gabe >> > ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
Gabe, I don't think any of them are plus the T.38 SDP tells me the bitrate is 14400, certainly not V.34 speed. Are you saying the machine even trying to negotiate V.34 poses a problem? On Thu, Oct 22, 2009 at 2:16 PM, Gabriel Kuri wrote: > Out of curiosity, is it a Super G3 (ie v.34) capable FAX? We've had > nothing but intermittent problems with Super G3 FAXes over T.38, unless > v.34 is strictly turned off on the machine. > > Gabe > -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
indeed, this looks like a "dialect" problem between your fax machine and your T.38 device. Anyhow, T.38 doesn't work well with SG3... I Always have to disable v.34 in order to have a reliable fax service. Also, cisco uses to suppress CM so that SG3 timeouts on ANSam the communication fallbacks to ordinary G3. Kristian, just for fun, what are you using to send the fax ? T. On Thu, Oct 22, 2009 at 8:16 PM, Gabriel Kuri wrote: > Out of curiosity, is it a Super G3 (ie v.34) capable FAX? We've had > nothing but intermittent problems with Super G3 FAXes over T.38, unless > v.34 is strictly turned off on the machine. > > Gabe > > > Kristian Kielhofner wrote: > > On Thu, Oct 22, 2009 at 11:58 AM, Tihomir Culjaga > wrote: > > > > One fax machine here in the office (still testing others) correctly > > sends all fax pages. A minute or so after the fax is marked > > "successful" on both sides it hangs up, redials, and resends the last > > page... It never did it while connected to the PSTN but then again my > > other fax machine isn't doing it either. I'm going to test with more > > fax machines to see if it's an issue with that specific machine. > > > > > ___ > FreeSWITCH-users mailing list > FreeSWITCH-users@lists.freeswitch.org > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org > ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
Out of curiosity, is it a Super G3 (ie v.34) capable FAX? We've had nothing but intermittent problems with Super G3 FAXes over T.38, unless v.34 is strictly turned off on the machine. Gabe Kristian Kielhofner wrote: > On Thu, Oct 22, 2009 at 11:58 AM, Tihomir Culjaga wrote: > > One fax machine here in the office (still testing others) correctly > sends all fax pages. A minute or so after the fax is marked > "successful" on both sides it hangs up, redials, and resends the last > page... It never did it while connected to the PSTN but then again my > other fax machine isn't doing it either. I'm going to test with more > fax machines to see if it's an issue with that specific machine. > ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
On Thu, Oct 22, 2009 at 11:58 AM, Tihomir Culjaga wrote: > > and what these few issues are? :P > One fax machine here in the office (still testing others) correctly sends all fax pages. A minute or so after the fax is marked "successful" on both sides it hangs up, redials, and resends the last page... It never did it while connected to the PSTN but then again my other fax machine isn't doing it either. I'm going to test with more fax machines to see if it's an issue with that specific machine. -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
On Thu, Oct 22, 2009 at 5:44 PM, Kristian Kielhofner < kristian.kielhof...@gmail.com> wrote: > An update for Tony, Brian, Mike, and everyone on the list... > > I was able to get some phone time with the team yesterday. Tony > worked on my machine, found the issue, and had it committed within 30 > minutes. > > I've been testing T.38 all morning between the fax machines in the > office with few issues. > > and what these few issues are? :P > THANKS AGAIN GUYS! > > ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
An update for Tony, Brian, Mike, and everyone on the list... I was able to get some phone time with the team yesterday. Tony worked on my machine, found the issue, and had it committed within 30 minutes. I've been testing T.38 all morning between the fax machines in the office with few issues. THANKS AGAIN GUYS! On Wed, Oct 21, 2009 at 2:54 PM, Anthony Minessale wrote: > can you try trunk and let me know right away, > if it's still not working i may need ssh access and call you on the phone. > -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
can you try trunk and let me know right away, if it's still not working i may need ssh access and call you on the phone. On Tue, Oct 20, 2009 at 10:50 PM, Kristian Kielhofner < kristian.kielhof...@gmail.com> wrote: > Done. > > On Tue, Oct 20, 2009 at 5:34 PM, Anthony Minessale > wrote: > > issue: > > console loglevel debug > > sofia profile internal siptrace on > > > > and put it on pastebin > > http://pastebin.freeswitch.org > > > > -- > Kristian Kielhofner > http://www.astlinux.org > http://blog.krisk.org > http://www.star2star.com > http://www.submityoursip.com > http://www.voalte.com > > ___ > FreeSWITCH-users mailing list > FreeSWITCH-users@lists.freeswitch.org > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org > -- Anthony Minessale II FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire AIM: anthm MSN:anthony_miness...@hotmail.com GTALK/JABBER/PAYPAL:anthony.miness...@gmail.com IRC: irc.freenode.net #freeswitch FreeSWITCH Developer Conference sip:8...@conference.freeswitch.org iax:gu...@conference.freeswitch.org/888 googletalk:conf+...@conference.freeswitch.org pstn:213-799-1400 ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
Done. On Tue, Oct 20, 2009 at 5:34 PM, Anthony Minessale wrote: > issue: > console loglevel debug > sofia profile internal siptrace on > > and put it on pastebin > http://pastebin.freeswitch.org > -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
Anthony, I will the next chance I get. Thanks! On Tue, Oct 20, 2009 at 5:34 PM, Anthony Minessale wrote: > issue: > console loglevel debug > sofia profile internal siptrace on > > and put it on pastebin > http://pastebin.freeswitch.org > -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
Brian, It's already set to silence :). My guess here is that Sofia is mis-interpreting the re-INVITE as not having any media (a la RFC 2543 hold). I don't want to place the call on hold. I want to negotiate T.38 ;). On Tue, Oct 20, 2009 at 5:35 PM, Brian West wrote: > Fix this or set it to silence. > > /b > > On Oct 20, 2009, at 3:57 PM, Kristian Kielhofner wrote: > >> EXECUTE sofia/s2s/+19412848...@65.196.170.129 playback >> (local_stream://moh) >> 2009-10-20 20:54:19.112927 [ERR] switch_core_file.c:116 Invalid file >> format [local_stream] for [moh]! > > > ___ > FreeSWITCH-users mailing list > FreeSWITCH-users@lists.freeswitch.org > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org > -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Re: [Freeswitch-users] Proxy media mode with T.38 re-invite
Fix this or set it to silence. /b On Oct 20, 2009, at 3:57 PM, Kristian Kielhofner wrote: > EXECUTE sofia/s2s/+19412848...@65.196.170.129 playback > (local_stream://moh) > 2009-10-20 20:54:19.112927 [ERR] switch_core_file.c:116 Invalid file > format [local_stream] for [moh]! ___ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
[Freeswitch-users] Proxy media mode with T.38 re-invite
Hello everyone, Now that proxy media mode is working again I'm trying to figure out why T.38 with re-INVITE doesn't... Everything goes well until my end tries to re-INVITE to T.38: U 10.16.5.129:5060 -> 65.196.170.191:5060 INVITE sip:mod_so...@65.196.170.191:5060 SIP/2.0. Via: SIP/2.0/UDP 10.16.5.129:5060;branch=z9hG4bK-2656bddb. From: ;tag=9f75a042a3ca1f17i0. To: "WIRELESS CALLER" ;tag=4eUH874j0eUZF. Remote-Party-ID: fax_9186 ;screen=yes;party=called. Call-ID: 2889ab05-385d-122d-07b2-0014221c0392. CSeq: 101 INVITE. Max-Forwards: 70. Contact: fax_9186 . Expires: 30. User-Agent: Linksys/SPA3102-5.1.10(GW). Content-Length: 261. Content-Type: application/sdp. . v=0. o=- 57670 57670 IN IP4 10.16.5.129. s=-. c=IN IP4 10.16.5.129. t=0 0. m=image 16454 udptl t38. a=T38FaxVersion:0. a=T38MaxBitRate:14400. a=T38FaxRateManagement:transferredTCF. a=T38FaxMaxBuffer:200. a=T38FaxMaxDatagram:200. a=T38FaxUdpEC:t38UDPRedundancy. U 65.196.170.191:5060 -> 10.16.5.129:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 10.16.5.129:5060;branch=z9hG4bK-2656bddb. From: ;tag=9f75a042a3ca1f17i0. To: "WIRELESS CALLER" ;tag=4eUH874j0eUZF. Call-ID: 2889ab05-385d-122d-07b2-0014221c0392. CSeq: 101 INVITE. User-Agent: Star2Star Media. Content-Length: 0. . U 65.196.170.191:5060 -> 10.16.5.129:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.16.5.129:5060;branch=z9hG4bK-2656bddb. From: ;tag=9f75a042a3ca1f17i0. To: "WIRELESS CALLER" ;tag=4eUH874j0eUZF. Call-ID: 2889ab05-385d-122d-07b2-0014221c0392. CSeq: 101 INVITE. Contact: . User-Agent: Star2Star Media. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, REGISTER, REFER, UPDATE, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 242. . v=0. o=Sonus_UAC 881416742673069109 186840485790971511 IN IP4 65.196.170.129. s=SIP Media Capabilities. c=IN IP4 65.196.170.191. t=0 0. m=audio 19646 RTP/AVP 101. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. U 10.16.5.129:5060 -> 65.196.170.191:5060 ACK sip:mod_so...@65.196.170.191:5060 SIP/2.0. Via: SIP/2.0/UDP 10.16.5.129:5060;branch=z9hG4bK-842177a7. From: ;tag=9f75a042a3ca1f17i0. To: "WIRELESS CALLER" ;tag=4eUH874j0eUZF. Call-ID: 2889ab05-385d-122d-07b2-0014221c0392. CSeq: 101 ACK. Max-Forwards: 70. Contact: fax_9186 . User-Agent: Linksys/SPA3102-5.1.10(GW). Content-Length: 0. . U 10.16.5.129:5060 -> 65.196.170.191:5060 BYE sip:mod_so...@65.196.170.191:5060 SIP/2.0. Via: SIP/2.0/UDP 10.16.5.129:5060;branch=z9hG4bK-9e6b284b. From: ;tag=9f75a042a3ca1f17i0. To: "WIRELESS CALLER" ;tag=4eUH874j0eUZF. Call-ID: 2889ab05-385d-122d-07b2-0014221c0392. CSeq: 102 BYE. Max-Forwards: 70. User-Agent: Linksys/SPA3102-5.1.10(GW). Content-Length: 0. . U 65.196.170.191:5060 -> 10.16.5.129:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.16.5.129:5060;branch=z9hG4bK-9e6b284b. From: ;tag=9f75a042a3ca1f17i0. To: "WIRELESS CALLER" ;tag=4eUH874j0eUZF. Call-ID: 2889ab05-385d-122d-07b2-0014221c0392. CSeq: 102 BYE. User-Agent: Star2Star Media. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, REGISTER, REFER, UPDATE, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Content-Length: 0. . U 65.196.170.191:5080 -> 65.196.170.129:5060 BYE sip:gw+s...@65.196.170.129:5080;transport=udp SIP/2.0. Via: SIP/2.0/UDP 65.196.170.191:5080;rport;branch=z9hG4bKpv9pFF0S5r9ca. Route: . Max-Forwards: 70. From: ;tag=p4H9tpXS1Qv8m. To: "WIRELESS CALLER" ;tag=3D535BNy2tS9e. Call-ID: 2d4c8faa-385d-122d-a69b-003018ae0bd3. CSeq: 121917605 BYE. Contact: . User-Agent: Star2Star Media. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, REGISTER, REFER, UPDATE, NOTIFY. Supported: timer, precondition, path, replaces. Reason: Q.850;cause=16;text="NORMAL_CLEARING". Content-Length: 0. . It's bizarre because the re-INVITE never gets transmitted to the other leg and FreeSWITCH responds with an SDP that only supports RFC2833. Here is the FreeSWITCH level 7 log: 2009-10-20 20:54:15.577191 [NOTICE] switch_channel.c:613 New Channel sofia/s2s/+19412848...@65.196.170.129 [ba5b3890-bdba-11de-b004-d7a35c351f6f] 2009-10-20 20:54:15.577191 [DEBUG] switch_core_state_machine.c:306 (sofia/s2s/+19412848...@65.196.170.129) Running State Change CS_NEW 2009-10-20 20:54:15.577191 [DEBUG] sofia.c:3493 Channel sofia/s2s/+19412848...@65.196.170.129 entering state [received][100] 2009-10-20 20:54:15.577191 [DEBUG] sofia.c:3500 Remote SDP: v=0 o=Sonus_UAC 7412556365376427063 4600708733824463060 IN IP4 65.196.170.129 s=SIP Media Capabilities c=IN IP4 4.55.0.130 t=0 0 m=audio 26636 RTP/AVP 0 8 18 101 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=maxptime:20 2009-10-20 20:54:15.577191 [DEBUG] switch_core_state_machine.c:312 (sofia/s2s/+19412848...@65.196.170.129) State NEW 2009-10-20 20:54:15.577191 [DEBUG] sofia.c:3615 (sofia/s2s/+19412848...@65.196.1
