🚀 go-pugleaf

raoul@eplunix.UUCP (Otero) wrote:
> In article <2689@kitty.UUCP>, larry@kitty.UUCP (Larry Lippman) writes:
> > 	In the on-hook (i.e., idle) state, connecting the two lines exactly
> > in parallel (tip1-to-tip2 and ring1-to-ring2) will, in general, be undetected
> > by the central office apparatus since there will be no current flow.
> 
> No such luck. Unless the voltage matching is perfect, which it never is,
> a small DC current will flow from one line to the other. This will 
> mess up both your lines, and you will not be able to use either. Ma
> Bell will also usually disconnect the lines within about a week of this
> sort of nonsense, thinking there is a short somewhere (there is!).
> 
> However, don't take any of our word for it. Just short them together
> at the phone jack and see.... Try some real scientific method.

    Or the way I've always done it was via a transformer...

	t1 -----    ----- t2
		)||(
    600 ohms	)||(    600 ohms
		)||(
        r1 -----    ----- r2
-- 
 ...sun!hoptoad!\                                     Tim Pozar
                 >fidogate!pozar               Fido:  1:125/406
  ...lll-winken!/                            PaBell:  (415) 788-3904
       USNail:  KKSF / 77 Maiden Lane /  San Francisco CA 94108