Hello, I don't understand why FS send this notify every 4 seconds... Please help me to understanding.. Console: send 892 bytes to udp/[X.X.X.X]:7513 at 12:02:43.219129: ------------------------------------------------------------------------ NOTIFY sip:00294539100@X.X.X.X:7513 SIP/2.0 Via: SIP/2.0/UDP Y.Y.Y.Y;rport;branch=z9hG4bKFK33trF1tDmSr Max-Forwards: 70 From: <sip:00294539100@Y.Y.Y.Y>;tag=3HH1U3FS0360e To: <sip:00294539100@Y.Y.Y.Y> Call-ID: b0e25031-8469-1233-09ae-000255904fb8 CSeq: 76323204 NOTIFY Contact: <sip:mod_sofia@Y.Y.Y.Y:5060> User-Agent: FS Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Event: message-summary Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Subscription-State: terminated;reason=noresource Content-Type: application/simple-message-summary Content-Length: 73 Messages-Waiting: no Message-Account: sip:00294539100@Y.Y.Y.Y ------------------------------------------------------------------------