I have a problem with dectection of busy channel
I use Ambient Md3200 card (X101P) .
and I have 3 extn with asterisk
when some user is dialing the number over PSTN network . then it should be detected and at a same time some other user try’s to dial a number over pstn then that user get a message like line busy .try after some time.
firstly, did you search the forum, or even look through the other threads. this was discussed only yesterday !
Asterisk will prevent you trying to use the Zap channel if there is already a call going through Asterisk on the channel, but there is no tone recognition or channel status otherwise. if the line is in use by a device ‘outside’ of Asterisk then it will dial anyway.