I am by no means an expert, but I have a suggestion. I nuked my extensions.conf file and rebuilt it from the web confuguration and I found a glitch in the default config. If the internet connection is down, and a call is made, the fast busy tone will sound, but it will not stop. If this is a simplex node, that is a problem. Here is my suggested default config: ; Un-comment out the following clause if you want Allstar Autopatch service [pstn-out] exten=_NXXNXXXXXX,1,Dial(IAX2/allstar-autopatch/\${EXTEN}) exten=_NXXNXXXXXX,2,Wait,3 exten=_NXXNXXXXXX,3,Hangup Thanks Ed KI6PSP