I need to connect a traditional analog fax to Asterisk.
I have Asterisk set up and it works well with 100 IP phones.
However, I am trying to use the LinkSys SPA-3102 (PAP2T) adapter to connect an old analog fax. But it does not work.
The internet line connection of the PAP2T goes to the Asterisk phone network, the Line 1 is connected to the fax machine.
When I call this phone number, it rings alright, but after 6 or so rings it says “Service Unavailable”.
A SIP trace on the phone shows that asterisk says “no answer” as reason for Hang-up. But it 's connected.
If anyone knows the how-to regarding fax connections please let me know urgently. What’s different in Asterisk as compared to a normal VoIP phone extension?