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- Path: sparky!uunet!think.com!sdd.hp.com!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
- Date: Sun, 15 Nov 92 14:24:03 CST
- From: todd@valinor.mythical.com (Todd Lawrence)
- Newsgroups: comp.dcom.telecom
- Subject: Re: Computerized Sales Call "Locked" My Line
- Message-ID: <telecom12.847.5@eecs.nwu.edu>
- Organization: (What? Organized??) - Mythical Computer Systems
- Sender: Telecom@eecs.nwu.edu
- Approved: Telecom@eecs.nwu.edu
- X-Submissions-To: telecom@eecs.nwu.edu
- X-Administrivia-To: telecom-request@eecs.nwu.edu
- X-Telecom-Digest: Volume 12, Issue 847, Message 5 of 17
- Lines: 37
-
- clifto@indep1.UUCP (Cliff Sharp) writes:
-
- >> [Moderator's Note: Well you are right of course that 20-30 seconds
- >> can mean life or death under some conditions. But the current telco
- >> technology is such that if the man wants his phone line back (more or
- >> less) immediatly, he will need to disconnect and wait about that
- >> period of time for the CO to get rid of the other party who is hanging
- >> on the line. PAT]
-
- > I've found that (at least locally) I can get those calls off the
- > line by shorting tip to ring. Not a _nice_ thing to do, but very
- > effective. I figure the total impedance in the runs from the CO to
- > the house should very effectively prevent any real burnout, and so far
- > I've been right (or lucky) about that. Don't know _why_ it works, but
- > it does.
-
- Just to re-iterate, as Pat originally stated, in an ESS environment,
- you will recieve your dialtone after closing the switchhook for 30-40
- sec's or so (depending on your particular switch/configuration/system
- load). In a step system you will never get your dialtone back unless
- the calling party hangs up first (unless an addon (at the CO) disconn-
- ecting device has been added on your switch -- unfortunately not the
- case in my hometown growing up!).
-
- Also be advised for those of you trying the "shorting ring to tip"
- trick, doing so as far as I can tell would not cause any damage to the
- system per say, however on an ESS switch, doing so will cause a "line
- showering" ("SHWL Etc.." for those who like telco acronyms) error to
- appear on the local maintenance TTY and if the telco see enough of
- these they may dispach a repairman out to see if he can determine why.
- Line showering also indicates partial short conditions or sometimes
- impedance mismatch situations.
-
-
- Todd Lawrence todd@valinor.mythical.com uunet!valinor!todd
-
-