[57north-discuss] Saturday hacking

[Edward Watson]

> On 24 January 2015 at 21:43, Iain R. Learmonth <irl at fsfe.org> wrote:
> For FXO we don't need them to be USB. Cheap Linksys SIP ATAs are available
> and will work fine. It's the FXS that is the problem, to allow incoming
> calls from the PSTN.

Otherway round Iain. When shopping, references are generally relative
to the PBX port hardware.

PBXs have (a) FXO port hardware to connect to the FXS ports provided
by the telephone company, and (b) FXS ports to connect the phone or
fax devices to.

Cheers,
Ed