Hi,<br>I have MP-124 device with SIP. So I have problem with registration , I get error in Asterisk:<br>SIP/2.0 481 Call/Transaction Does Not Exist.<br>I have created in asterisk each fxs port as a user in sip.conf. So in calls there is no problem. I can call everywhere, but in logs I see this messages, so I want to avoid it. Maybe somebody has MP-124 and has no problem and can give me some advice how to fix this problem. Thanks
<br><br><br>This my trace:<br>#<br>U <a href="http://192.168.1.1:5060">192.168.1.1:5060</a> -> <a href="http://192.168.1.2:5060">192.168.1.2:5060</a><br>NOTIFY <a href="mailto:sip:7419@192.168.1.2">sip:7419@192.168.1.2
</a> SIP/2.0.<br>Via: SIP/2.0/UDP <a href="http://192.168.1.1:5060">192.168.1.1:5060</a>;branch=z9hG4bK26434b38.<br>From: "Unknown" <<a href="mailto:sip:Unknown@192.168.1.1">sip:Unknown@192.168.1.1</a>>;tag=as56d969af.
<br>To: <<a href="mailto:sip:7419@192.168.1.2">sip:7419@192.168.1.2</a>>.<br>Contact: <<a href="mailto:sip:Unknown@192.168.1.1">sip:Unknown@192.168.1.1</a>>.<br>Call-ID: <a href="mailto:79e1927a4b331c8443b7b3c5445d742a@192.168.1.1">
79e1927a4b331c8443b7b3c5445d742a@192.168.1.1</a>.<br>CSeq: 102 NOTIFY.<br>User-Agent: Asterisk PBX.<br>Max-Forwards: 70.<br>Event: message-summary.<br>Content-Type: application/simple-message-summary.<br>Content-Length: 92.
<br>.<br>Messages-Waiting: no.<br>Message-Account: <a href="mailto:sip:asterisk@192.168.1.1">sip:asterisk@192.168.1.1</a>.<br>Voice-Message: 0/0 (0/0).<br><br>#<br>U <a href="http://192.168.1.2:5060">192.168.1.2:5060</a> ->
<a href="http://192.168.1.1:5060">192.168.1.1:5060</a><br>SIP/2.0 481 Call/Transaction Does Not Exist.<br>Via: SIP/2.0/UDP <a href="http://192.168.1.1:5060">192.168.1.1:5060</a>;branch=z9hG4bK26434b38.<br>From: "Unknown" <
<a href="mailto:sip:Unknown@192.168.1.1">sip:Unknown@192.168.1.1</a>>;tag=as56d969af.<br>To: <<a href="mailto:sip:7419@192.168.1.2">sip:7419@192.168.1.2</a>>;tag=1c1736631378.<br>Call-ID: <a href="mailto:79e1927a4b331c8443b7b3c5445d742a@192.168.1.1">
79e1927a4b331c8443b7b3c5445d742a@192.168.1.1</a>.<br>CSeq: 102 NOTIFY.<br>Contact: <sip:<a href="http://192.168.1.2">192.168.1.2</a>>.<br>Supported: em,timer,replaces,path.<br>Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE.
<br>Content-Length: 0.<br>.<br><br><br>Asterisk is <a href="http://192.168.1.1">192.168.1.1</a> and MP-124 is <a href="http://192.168.1.2">192.168.1.2</a>.<br>