I have a cell phone with a standard analog 2.5mm headset connector. I can wire this to the speaker and mic jacks on my sound card. But does asterisk support using a standard sound card as an fxo?
My only alternative is to disconnect the speaker and mic from a standard landline telephone, connect the cell phone headset interface in their place (thus using the telephone for its duplex coil), connect the landline telephone via standard telephone cord to a x100p plugged into the computer, and connect a 48V DC battery across the telephone cord wires so that both the telephone and the x100p think that they’re plugged into a standard landline connection, all of which would be a major hassle.
It’d be easier to just use the sound card method, but does asterisk support it? If not, then what’s the easiest way to connect a cell phone which has only a standard analog headset interface (no digital interface)?