Hi guys. Has anyone had this issue where an endpoint does not like the NOTIFY request. ? I am posting the sip trace below. Thanks in advance Clive (NOTIFY sent from Freeswitch) U 2012/11/21 15:39:13.562784 196.41.2.211:5060 -> 41.150.16.236:5060 NOTIFY sip:253118877988@41.150.16.236:5060 SIP/2.0. Via: SIP/2.0/UDP 196.41.2.211;rport;branch=z9hG4bK2KN80mQ12DFZQ. Max-Forwards: 70. From: <sip:253118877988@196.41.2.211>;tag=1N243vyr38aUS. To: <sip:253118877988@196.41.2.211>. Call-ID: adabb26c-ae83-1230-adb4-001aa01d9e0c. CSeq: 36416512 NOTIFY. Contact: <sip:mod_sofia@196.41.2.211:5060>. User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-073f9c3 2010-05-03 13-46-57 -0500. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Event: message-summary. Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Subscription-State: terminated;reason=timeout. Content-Type: application/simple-message-summary. Content-Length: 72. . Messages-Waiting: no. Message-Account: sip:253118877988@196.41.2.211. . (Response) U 2012/11/21 15:39:13.740207 41.150.16.236:5060 -> 196.41.2.211:5060 SIP/2.0 481 Call/Transaction Does Not Exist. Via: SIP/2.0/UDP 196.41.2.211;rport;branch=z9hG4bK2KN80mQ12DFZQ. From: <sip:253118877988@196.41.2.211>;tag=1N243vyr38aUS. To: <sip:253118877988@196.41.2.211>. Call-ID: adabb26c-ae83-1230-adb4-001aa01d9e0c. CSeq: 36416512 NOTIFY. Server: KAREL-Sip-Trunk v. AAE_16 (ms48). Supported: timer,replaces. Contact: <sip:KAREL_trunk@41.150.16.236:5060>. Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,UPDATE,REFER,NOTIFY. Content-Length: 0. ____________________________________________________________ South Africas premier free email service - www.webmail.co.za DHL Express. Simple, secure and affordable. http://www.postnet.co.za/index.php?option=com_content&view=article&id=74&Ite...