I set the server up (3CX Phone System Version6.0.664.0) and all looks ok with all green symbols for line status on my 3CX VoIP clients and VoIP status: Registered. On my CallCentric dashboard, its telling me that my "Phone is not registered". The one weird thing is that when I first created the VoIP line and used the defaults I was able to get a Phone Registered on CallCentric, but was still unable to call in or out. Then when I followed the 3CX install instructions on CallCentric and re-registered the line within 3CX, it became un-registered on CallCentric. This is the error I get when I try to make a call out on one of the softphones: 09:19:35.721 Call::Terminate [CM503008]: Call(10): Call is terminated 09:19:35.705 Call::RouteFailed [CM503015]: Call(10): Attempt to reach [sip:firstname.lastname@example.org:5060] failed. Reason: Not Found 09:19:35.705 CallCtrl:nSelectRouteReq [CM503014]: Call(10): No known route to target: [sip:email@example.com:5060] 09:19:35.689 CallCtrl:nSelectRouteReq [CM503010]: Making route(s) to [sip:firstname.lastname@example.org:5060] 09:19:35.689 Extension:rintEndpointInfo [CM505001]: Ext.01: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CX_VoIP_Client] Transport: [sip:192.168.0.199:5060] When I try calling in, it just keeping ringing and never connects.