Hi, Have set up 3cx and am unable to make outbound calls. Can receive inbound calls, can call between extensions and perform call transfers but cannot dial any outbound number, even virtual numbers. VOIP provider is Inphonex. Here is a copy of the log for the failed call. 19:58:46.421 Call::Terminate [CM503008]: Call(37): Call is terminated 19:58:46.359 Call::RouteFailed [CM503015]: Call(37): Attempt to reach [sip:firstname.lastname@example.org;user=phone] failed. Reason: Not Found 19:58:46.359 CallCtrl:nSelectRouteReq [CM503014]: Call(37): No known route to target: [sip:email@example.com;user=phone] 19:58:46.343 CallCtrl:nSelectRouteReq [CM503010]: Making route(s) to [sip:firstname.lastname@example.org;user=phone] 19:58:46.343 Extension:rintEndpointInfo [CM505001]: Ext.100: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Grandstream HT386 184.108.40.206 FXS0] Transport: [sip:192.168.1.34:5060] 19:58:46.250 CallCtrl:nIncomingCall [CM503001]: Call(37): Incoming call from Ext.100 to [sip:email@example.com;user=phone] 19:57:11.593 StunClient:nInitTests [CM506001]: STUN request to resolve SIP external IPort mapping is sent to STUN server 220.127.116.11:3478 over Transport 192.168.1.34:5060 3CX Phone System Version6.0.806.0 using grandstream ht386 setup as per the guide. Am very new to this so any assistance appreciated. Thanks.