🚀 go-pugleaf

djk@world.std.com (Dan J Keldsen) writes:

> I'm trying to find a book or books or just schematics from some kind soul,
> that would enable to me to have a 2-line system (modifying a 1-line phone)
> that would have a light for the ringer (on each line), and same light
> would light (and stay lit) while that line was in use. So, I need plans
> for a 2-line HOLD circuit, and plans to light da light of a line in-use. BTW,
> the in-use light should work if an extension phone is in use also, not just
> the attached phone to said circuit.
> 
> ----------------------------------------------------------------------
> Dan Keldsen			Working on a Brain-to-
> djk@world.std.com		MIDI convertor...
> Somerville, MA			Anybody willing to sport
> BERKLEE College of Music	the necessary "elective surgery" ??
> ----------------------------------------------------------------------
> 

You can buy fancy speaker phones with timers,clocks and memory which have 
2 line capability for about $50. the hold feature should only cost a few 
bucks with led's to monitor active lines (and suitable resistance)
hold cct is only a resistor to maintain the voltage low. On hook is 
usally 48V, off hook is 12V 1phone 6V 2 phones etc approx.

dino@inqmind.bison.mb.ca
The Inquiring Mind BBS, Winnipeg, Manitoba  204 488-1607