Hi , I’m having issues with incoming call ring tone to the caller , when i dial in from the outside world (PTSN) the call is very slow to start the ringing tone to the external phone signifying receiving hand sets are ringing. however the phones with in the pbx are very quick to respond and are actually ringing whilst the phone on the ptsn side just sounds like a dead line this goes on for at very least 5 seconds or so. to the point where the incoming caller just thinks its not working and gives up.
does any one have any idea what would be causing this. is there a setting or something in freepbx that could be resposible? my gut feeling is that free pbx isn’t sending some ACK to my provider in an a acceptable time to siginfy that the end points are actualying ringing. thus not relaying the ringing tone to the incoming caller on the PTSN side?