P
Patrick
- Jan 1, 1970
- 0
Hi,
I'm looking for a way of detecting if a fax is making my phone ring or
if it is a voice call. I'd like to have only one phone number,
therefore one unique ringtone. So far I thought about building a
device that would answer any calls after 5 rings. After it answers I
would like it to determine if this is a voice call or a fax calling.
Maybe this is impossible, or maybe there is no precise way of doing
this but I am hoping that all faxes send somekind of handshake within
the first second after the call is answered (that way I could wait
1sec for the handshake, and if I don't get any, route to answering
machine)
Anyone could tell me if there is such a mechanism?
I'm looking for a way of detecting if a fax is making my phone ring or
if it is a voice call. I'd like to have only one phone number,
therefore one unique ringtone. So far I thought about building a
device that would answer any calls after 5 rings. After it answers I
would like it to determine if this is a voice call or a fax calling.
Maybe this is impossible, or maybe there is no precise way of doing
this but I am hoping that all faxes send somekind of handshake within
the first second after the call is answered (that way I could wait
1sec for the handshake, and if I don't get any, route to answering
machine)
Anyone could tell me if there is such a mechanism?