Hi Chris, I've increased the debugging and taken a new trace: http://pastebin.freeswitch.org/17864 And here is the output of tport_sip.log: http://pastebin.freeswitch.org/17865 A person on the #freeswitch IRC channel suggested the problem might be due to packet fragmentation? Charlie On 24/11/2011 14:29, chrisbware@interfree.it wrote:

I suspect problem is on SDP but we can't see it on pastebin. -----Messaggio originale----- Da: Charlie Orford <charlie.orford@attackplan.net> Inviato il: 24 Nov 2011 - 10:17 A: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>

Hi list

I have done some googling but cannot find much info about what causes FS to send a SIP/2.0 400 Bad Request response.

My phones are able to register but when I try a test call (e.g. to 9196) FS responds to the INVITE with Bad Request. For a short transcript of this in action see: http://pastebin.freeswitch.org/17863

My setup: I have a clean git head install (cloned yesterday) and am running the unmodified "out of the box" configuration (except I have enabled NDLB-force-rport on the internal profile and set a default poassword). FS is on a public server (no nat) and phones (aastra 57i models) are all natted behind an ADSL router.

Thanks & Regards, Charlie

_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com

Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.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

------------------------------------------------------------------------------- Valore legale alle tue mail InterfreePEC - la tua Posta Elettronica Certificata http://pec.interfree.it -------------------------------------------------------------------------------