Hi, My current setup is. External hosted 3cx server, I have 2 x linksys ip phones, spa942 and spa962 that connect over NAT to the system. All is working ok. I have another number that i want to go to a seperate phone, currently using the spa962 and all working ok. What I have done is put in a spa3102 with a pstn phone plugged into the line 1 port. I can make calls, calls voicemail, call other extensions I just can't get inbound calls to work. Any ideas?? When i ring the number i can see the light blinking more on the spa3102 but the phone wont ring. The spa3102 has the 3cx server ip address and is a registered extension in 3cx.