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From: apple!well.sf.ca.us!well!mingo@uunet.uu.net (Charles Hawkins Mingo)
Newsgroups: comp.dcom.telecom
Subject: Re: Cleaning Pulses
Message-ID: <9794@accuvax.nwu.edu>
Date: 16 Jul 90 01:51:10 GMT
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X-Telecom-Digest: Volume 10, Issue 489, Message 7 of 10


In article <9677@accuvax.nwu.edu> ah0i+@andrew.cmu.edu (Andrew A.
Houghton) writes:

>In brief, I have heard that at one time AT&T sent out "cleaning
>pulses" in the wee hours of morning to "fuse shorts in the line."

	"At one time?"  I get half second chirps on my AT&T phone
around 1 AM, usually once or twice a week.

	I had assumed it was the local phone compant (C&P) since they
had warned me of middle of the night interruptions in service last
March, when they apparantly replaced the local switch.

	It sounds like someone is phoning you, and changing their mind
real quick (fraction of a ring).


Charlie Mingo					Internet: mingo@well.sf.ca.us
2209 Washington Circle #2			CI$:  71340,2152
Washington, DC  20037				AT&T:  202/785-2089