Hello, The extension 7006 was working few days ago and now it not working,rest all the phone are working properly. U 192.168.2.190:5060 -> 192.168.2.14:5060 INVITE sip:7006@192.168.2.14:5060 SIP/2.0..Via: SIP/2.0/UDP 192.168.2.190;rport;branch=z9hG4bK8mmBB5e8Z2mKr..Max-Forwards: 70..From: "" <sip:9322273640@192.168.2.190>;tag=4QggZ1XcNZD3F..To: < sip:7006@192.168.2.14:5060>..Call-ID: 7bf ae496-c324-122e-bc85-0026b976aef7..CSeq: 9403059 INVITE..Contact: < sip:mod_sofia@192.168.2.190:5060>..User-Agent: NOVANET..Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. .Supported: timer, precondition, path, replaces..Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer..Content-Type: application/sdp..Content-Dis position: session..Content-Length: 203..X-FS-Support: update_display..Remote-Party-ID: <sip:9322273640@192.168.2.190>;party=calling;screen=yes;privacy=off....v=0..o=FreeSWITCH 1299446773 1299446774 IN IP4 192.168.2.190..s=FreeSWITCH ..c=IN IP4 192.168.2.190..t=0 0..m=audio 31474 RTP/AVP 8 101 13..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-16..a=ptime:20.. U 192.168.2.14:5060 -> 192.168.2.190:5060 SIP/2.0 488 Not Acceptable Here..Via: SIP/2.0/UDP 192.168.2.190;rport;branch=z9hG4bK8mmBB5e8Z2mKr..From: < sip:9322273640@192.168.2.190>;tag=4QggZ1XcNZD3F..To: "7006" < sip:7006@192.168.2.14:5060>;tag=983B5A59-EB953B22..CSeq: 9403059 INVITE..Call-ID: 7bfae496-c324-122e-bc85-0026b976aef7..Contact: < sip:7006@192.168.2.14:5060>..User-Agent: PolycomSoundPointIP-SPIP_335-UA/3.2.2.0477..Accept-Language: en..Warning: 488 SDP "NotAcceptableHere"..Content-Length: 0.... I tried all the possibilities with codec priorities on U/A . http://pastebin.freeswitch.org/15577 Any help. Regards Sam