17 Jul
1998
17 Jul
'98
4:09 a.m.
On Fri, 17 Jul 1998, Julian Richardson wrote:
Ok, so given that there are people out there who know
about phone
systems, how would I build a device that sat on the phone line and could
detect whether the line was in use or not - it's extremely annoying when
you have a modem and voice phone on the same line and your voice call
gets interrupted by a burst of modem noise! :)
btw, this is for a UK system - I've seen curcuits to do exactly this
job, but they never say whose phone systems their designed for, and I'd
imagine that US and UK systems work with different setups....
You want to avoid having your modem interrupt your voice communications?
Normally its the other way around, and there are cheap devices you can buy
to accomplish this. But I don't know that I understand what your problem
is. Modems don't generally start transmitting on their own while you're
on the phone, unless they're from the movies where stuff like that can
happen.
Sam Alternate e-mail: dastar(a)siconic.com
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