Thanks mate! Specifying the extension same as the username and then using extension-in-contact fixed the problem. It now registers successfully with the switch. I do though still get the message: 2010-01-29 01:30:05.634220 [NOTICE] sofia_reg.c:2267 Added gateway 'Test-Inbound' to profile 'external' 2010-01-29 01:30:05.634547 [ERR] sofia.c:1663 ERROR: username param is REQUIRED! 2010-01-29 01:30:05.634657 [ERR] sofia.c:1663 ERROR: username param is REQUIRED! What is that about? I have the username param stated in the gateway profile!! From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Brian West Sent: Friday, January 29, 2010 1:05 PM To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] 409 Conflict When registering FS with Softswitch contact header is fine... but if your switch requires the username in the contact then you can set extension-in-contact on the gateway to force that. /b On Jan 29, 2010, at 11:57 AM, RR wrote: Any ideas? Anyone? All I can tell is that the Contact Header looks a bit dodgey but how that's causing a 409 is what I don't get. Help please? \RR __________ Information from ESET NOD32 Antivirus, version of virus signature database 4818 (20100129) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com