Could someone help me please on how to setup speedtouch 716wl with 3cx to send and receive outside calls using PSTN only (we don't have VOIP providers in my country, "Saudi Arabia"). All I want to do is to setup a pbx at home using my existing PSTN line, but be ready to use VOIP once it is opened up. I want to be able send and receive outside calls using softphones such as x-lite from different computer in the network, or IP hard phone such as SNOM 320. I have managed to register the PSTN line on 3cx and the light went green. I can call internal internal ext's, however no external calls. Also there was no activities on the "service status" when I tried to call my PSTN line number. thanks a lot.