Wolverinext2

hello, i need help me. i have problems whit the configuration of express talk and axon. 14:59:01 Running SIP Network Tool 14:59:03 Server 192.168.1.80 did not respond to register (user 101) 14:59:03 Check server details for that line 14:59:03 Register attempt for proxy 192.168.1.80 failed 14:59:03 501 Not Implemented 14:59:11 Restarting the SIP Engine so settings take effect. 14:59:13 SIP Private IP is: 192.168.1.80:5060 14:59:13 SIP Public IP is: 192.168.1.80:5060 14:59:13 SIP Number: 101@192.168.1.80:5060 14:59:13 Register attempt for proxy 192.168.1.80 failed 14:59:13 501 Not Implemented 14:59:14 Initiated sip call to: 102 14:59:14 Error returned: Request Pending 14:59:14 Call has disconnected 14:59:24 Register attempt for proxy 192.168.1.80 failed 14:59:24 501 Not Implemented 14:59:35 Register attempt for proxy 192.168.1.80 failed 14:59:35 501 Not Implemented 14:59:45 Register attempt for proxy 192.168.1.80 failed 14:59:45 501 Not Implemented 14:59:55 Server 192.168.1.80 did not respond to register (user 101) 14:59:55 Check server details for that line 14:59:55 Register attempt for proxy 192.168.1.80 failed 14:59:55 501 Not Implemented Plis help me