Path: utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!sdd.hp.com!ucsd!casbah.acns.nwu.edu!nucsrl!telecom-request From: john@zygot.ati.com (John Higdon) Newsgroups: comp.dcom.telecom Subject: Re: Answer Supervision From Loop Start Circuits Message-ID: Date: 15 Feb 91 19:09:00 GMT Sender: news@casbah.acns.nwu.edu Reply-To: John Higdon Organization: Green Hills and Cows Lines: 26 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 118, Message 9 of 12 John Boteler writes: > [Author's Note: Would ground start circuits provide the signalling > desired? Since they are engineered circuits, it would seem that such > signalling could be provided without a lot of pain. I don't see DOD > trunks as being special: many PBXs are configured this way.] This prompts a question: Do other telcos (than Pac*Bell) always consider ground start lines to be design circuits? A number of posts over the years have seemed to carry that assumption. As far as Pac*Bell is concerned, ground start or loop start are simply alternative ways of supplying dial tone. They do not define PBX trunks, business service, or line conditioning. Any line of any COS can be either ground start or loop start, including residence. There is no extra charge for loop start, either for installation or monthly. However, converting a line from one to the other carries a charge roughly equivalent to the installation fee. Does "ground start" imply certain classes of service in other parts of the country? John Higdon | P. O. Box 7648 | +1 408 723 1395 john@zygot.ati.com | San Jose, CA 95150 | M o o !