And "ground start" ( a feature of trunks rather than "lines") require a momentary ground on one of the two wires of the pair from the C.O. to request dial tone, rather than the usual "loop start" line used by a single line phone or key system. I have been given to understand the ground start is unknown out side North America ( though I could be wrong ). I have never heard ground start ckts being used to thwart problems with lightning................ but who knows, I don't know everything, though I can't imagine why it should matter...........
On Fri, 16 Aug 2002 23:39:57 -0400 Carl Navarro <[EMAIL PROTECTED]> writes: > At 07:54 PM 8/16/2002 -0700, John Berry wrote: > >This was called a "ground-start circuit" right and was only done in > certain > >high-lightning areas way back when, I think... > > > >Thank You, > > > >John Berry, Owner > >Lantex Voice & Data Systems > >6093 Horton Dr > >La Mesa, Ca 91942 > >phone 619-690-4428 > >fax 619-741-6823 > >[EMAIL PROTECTED] > > > >-----Original Message----- > >From: chris Snyder [mailto:[EMAIL PROTECTED]] > >Sent: Friday, August 16, 2002 3:24 PM > >To: [EMAIL PROTECTED] > >Cc: [EMAIL PROTECTED] > >Subject: Re: KX-T: reverse circuit > > Does the phrase "This Feature Is Not Used in the U.S.A." mean > anything to > you all? > > Our old Step-By-Step central office reversed the supervision > (Polarity of > T&R) when the call was answered. > You can get that for COCOT lines in some places and you pay dearly > for it > today. > > I guess some countries still use it as a method of determining an > answered > call. > > Carl Navarro > > > > > > > >I have never used it, though I know that more than likely you will > have > >to have your incoming lines specially engendered to provide > battery > >reversal on called party answer. As far as I know no telco provides > this > >as a > >"default" function any more. > > > > Chris Snyder Advantage Telcom Cosby, Tn. Sevier County's oldest interconnect. ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/. _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt
