🚀 go-pugleaf

In article <829334769.18402@lodcomp.demon.co.uk>, Luke Jackson
<luke@lodcomp.demon.co.uk> writes
>Michael@zoec.demon.co.uk (Michael Clements) wrote:
>
>>Are there any techies who can say whether it is possible to use or
>>modify a standard UK telephone handset (not a mobile phone but the
>>plastic part you hold listen and talk into) on a conventional phone to
>>work with my Soundblaster 16 soundboard to replace the microphone &
>>speakers normally used when making internet phone contact.
>
>The problem is that the handsets that you normally use with sound
>cards have two pairs of wires, one for the microphone and the other
>for the speaker, whereas a phone line uses just one pair for both.  If
>the headset uses two pairs (while the phone itself uses one pair) it
>shouldn't be too hard to do a direct hookup?  I'm not sure if this is
>the case however.
>
Although a telephone itself has only two wires, the handset itself has
four - two for the microphone and two for the earpiece.  Traditionally
the microphone wires are blue and white and the earpiece wires are red
and green (if I remember correctly!).  You can quickly check by briefly
connecting a 1.5V cell (battery) across the red/green, when you should
hear a click in the earpiece.
-- 
Frank Erskine
Sunderland