Interface from telephone to computer - options?

[Dave Liquorice]

circuit

What, 4 wire to the handset or plugin handsets? I don't think I've ever seens a phone that isn't 4 wire to the handset. Plugin handsets are quite common, some times not obvious as the plug is hidden under the base unit and hard wired into the handset.

[Frank Erskine]

Most old 300-type (bakelite) phones are 3-wire (plaited cord) to the handset.

[Dave Plowman (News)]

Plug in handset. And I've had a fair few phones apart in my time. ;-)

[jkn]

Much better than the Maplin sort of this are the adapters Retell Recorders do:

'703N' adapter (dunno if still manufactured, but available on eBay) can be USB powered and interfaces from a Telephone headset adapter to a PC line input. As said elsewhere, if you record that and filter to around 3000Hz you can a perfectly decent recording.

J^n