Hi everyone, I have a PorTech MV-370 configured as shown in Wiki category forum. All the incoming calls from GSM make my internal ring, but when i call from my internal (101) the GSM number, the outbound call is not fired. On 3cx log I see 23:36:44.762 Call::Terminate [CM503008]: Call(3): Call is terminated 23:36:44.746 Call::Terminate [CM503008]: Call(3): Call is terminated 23:36:39.317 CallCtrl:nLegConnected [CM503007]: Call(3): Device joined: sip:firstname.lastname@example.org:5060 23:36:39.302 CallCtrl:nLegConnected [CM503007]: Call(3): Device joined: sip:email@example.com:5060 23:36:38.943 Line:rintEndpointInfo [CM505002]: Gateway:[PortTech GSM] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [CM5K (706220)] Transport: [sip:192.168.0.12:5060] 23:36:38.475 CallCtrl:nSelectRouteReq [CM503004]: Call(3): Calling: PSTNline:10001@[Dev:sip:firstname.lastname@example.org:5060] 23:36:38.444 CallCtrl:nIncomingCall [CM503001]: Call(3): Incoming call from Ext.101 to [sip:email@example.com] then the call from 3cx is fired on PorTech but on the MV-370 device, under Mobile status I see Incoming IP: 101@10001 Incoming IP Name: 101 Outgoing IP: Incoming Mob: Outgoing Mob: Where is the mistake? I think in 3cx MV-370 gateway configuration but where? Thanks a lot, Andrea L.