Is there a way that Asterisk can detect a disconnected number? Or maybe I should ask if there is special DTMF digits or tones that Telcos send?
For example you will hear the message " The number you have dialed have been disconnected" or “If you would like to make a call, please hangup and dial again”.
All those calls are being logged as “ANSWERED”. It is no problem when there is a human making the call but when my applciation is making the call I need to be able to distinguish between those scenarios programmatically.
Any ideas or advice would be appreciated.