I'm trying H.323 on my apx (TAOS 12.0.1e2) and it seems to work fine except for calling, when I call a number out the PSTN side (I've tried both ISDN and CAS trunks) it only rings for 18 seconds. After 18 seconds it drops the connection and gives a fast busy. If the call answers before that, everything works fine. I've tried with both an external softphone as the endpoint and using the APX to call itself, same behavior. Any ideas? My VOIP profile looks like... new VOIP set voip-index gateway-access-number = 0 set voip-index far-end-number = 0 set gatekeeper-ip = 10.0.0.20 set vpn-mode = yes set single-dial-enable = yes set dtmf-tone-passing = dtmf-tone-passed-outofband set true-connect-enable = yes set sequential-call-enable = no write -f ;