RouterVoice InfoSystemRegionalLine 1Line 2User 1User 2Admin Login basic | advanced
Product InformationProduct Name:SPA-2102Serial Number:FM500L439927Software Version:5.2.5Hardware Version:1.3.5(a)MAC Address:000E0827B638Client Certificate:InstalledCustomization:Open System StatusCurrent Time:6/16/2016 09:42:17Elapsed Time:23:20:57RTP Packets Sent:0RTP Bytes Sent:0RTP Packets Recv:0RTP Bytes Recv:0SIP Messages Sent:18544SIP Bytes Sent:8056368SIP Messages Recv:0SIP Bytes Recv:0External IP: Line 1 StatusHook State:OnRegistration State:FailedLast Registration At:0/0/0 00:00:00Next Registration In:6 sMessage Waiting:NoCall Back Active:NoLast Called Number:Last Caller Number:Mapped SIP Port:Call 1 State:IdleCall 2 State:IdleCall 1 Tone:NoneCall 2 Tone:NoneCall 1 Encoder:Call 2 Encoder:Call 1 Decoder:Call 2 Decoder:Call 1 FAX:Call 2 FAX:Call 1 Type:Call 2 Type:Call 1 Remote Hold:Call 2 Remote Hold:Call 1 Callback:Call 2 Callback:Call 1 Peer Name:Call 2 Peer Name:Call 1 Peer Phone:Call 2 Peer Phone:Call 1 Duration:Call 2 Duration:Call 1 Packets Sent:Call 2 Packets Sent:Call 1 Packets Recv:Call 2 Packets Recv:Call 1 Bytes Sent:Call 2 Bytes Sent:Call 1 Bytes Recv:Call 2 Bytes Recv:Call 1 Decode Latency:Call 2 Decode Latency:Call 1 Jitter:Call 2 Jitter:Call 1 Round Trip Delay:Call 2 Round Trip Delay:Call 1 Packets Lost:Call 2 Packets Lost:Call 1 Packet Error:Call 2 Packet Error:Call 1 Mapped RTP Port:Call 2 Mapped RTP Port:Call 1 Media Loopback:Call 2 Media Loopback: Line 2 StatusHook State:OnRegistration State:Not RegisteredLast Registration At:Next Registration In:Message Waiting:NoCall Back Active:NoLast Called Number:Last Caller Number:Mapped SIP Port:Call 1 State:IdleCall 2 State:IdleCall 1 Tone:NoneCall 2 Tone:NoneCall 1 Type:Call 2 Type:Call 1 Encoder:Call 2 Encoder:Call 1 Decoder:Call 2 Decoder:Call 1 FAX:Call 2 FAX:Call 1 Remote Hold:Call 2 Remote Hold:Call 1 Callback:Call 2 Callback:Call 1 Peer Name:Call 2 Peer Name:Call 1 Peer Phone:Call 2 Peer Phone:Call 1 Duration:Call 2 Duration:Call 1 Packets Sent:Call 2 Packets Sent:Call 1 Packets Recv:Call 2 Packets Recv:Call 1 Bytes Sent:Call 2 Bytes Sent:Call 1 Bytes Recv:Call 2 Bytes Recv:Call 1 Decode Latency:Call 2 Decode Latency:Call 1 Jitter:Call 2 Jitter:Call 1 Round Trip Delay:Call 2 Round Trip Delay:Call 1 Packets Lost:Call 2 Packets Lost:Call 1 Packet Error:Call 2 Packet Error:Call 1 Mapped RTP Port:Call 2 Mapped RTP Port:Call 1 Media Loopback:Call 2 Media Loopback:
Admin Login basic | advanced
You are sitting behind a CGN server.
As Amanda stated, SIP is not blocked.
Have you tried disabling web acceleration to see if it (more or less) works then ?