I have a Fritzbox 7170 and I'm having trouble with its configuration. I have already set it as a VOIP Gateway, and also as a VOIP provider, in 3CX. So, when I use a softphone (X-Lite), I can make outbound calls that use the fritz as a provider. I can also receive calls when someone calls the PSTN line at the Fritzbox. The problem is that I don't know how to use the ATA extensions (FON1), with is a normal telephone plugged to the ATA ports of the Fritzbox, allowing me to make and receive calls. So, my idea is to make ATA connected phone act like the softphones. Can someone help me? Cheers!