[asterisk-users] Channel is answered by FXO card before callee answered the phone(pick up phone)

[John Novack]

Mojtaba wrote:
> Hello Experts.
> Im working with Asterisk PBXand freeswitch PBX.
> I have a challenge with FXO card in Asterisk and i could not solve it yet.
> I hope you could guide me in this regards.
> When i want route the call to FXO channels, Before the callee answer
> the phone (pick up phone), The channel is answered with FXO card. How
> can change this treat so that the callee dont answer the phone, the
> channel dont answered with FXO card. I have this challenge with FXO
> gateway too.
> This challenge is more important when using callfile to generate call
> using DAHDI/g0/
> When using it,All attempts to generate call are answered in CDR
> field(disposision=answered).
>
> Im waiting for your replying and Thanks.
> With Regards.Mojtaba
>
I believe that is a well known behavior of Zaptel/DAHDI, given that many analog lines that would be attached to an FXO card supply little or no indication of an answered call, calls are considered answered once dialing is complete.

You will need to use an alternate technology if you want to know if or when the caller has answered.

John Novack

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