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From: julian@bongo.uucp (Julian Macassey)
Newsgroups: comp.dcom.telecom
Subject: Re: Help with Rotored Lines/ Rack Mounted Modems
Message-ID: <9856@accuvax.nwu.edu>
Date: 18 Jul 90 22:48:18 GMT
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In article <9796@accuvax.nwu.edu>, faunt@cisco.com (Doug Faunt N6TQS
415-688-8269) writes:
 
> It turns out, that the way to busy-out a bad modem in a T2500

The simple way is short the damn phone line. This can be done with
high tech paper clips or fancy plugs across the 66 block. This is a
no-fail guaranteed way to do it. Funny I had to explain this to
"Sprint PC-Pursuit" last week. But they are a telephone company, so
how are they to know how to busy out a modem (-: I am always amazed
how ignorant and incompetant some employees are.

Anyhow a good administarator of telco gear should check all trunks and
associated equipment on a regular basis. This is a task an operator
can do first thing in the morning. It is also handy to check 800
numbers on thge local loops as well, they do die sometimes.

> Another solution is to check out various styles of "call
> distribution".  We have a ATT Systme 75 here at cisco, and one of the
> styles of call distribution is called "uniform call distribution".  It
> tries to route the next call to a group to the least-used line
> available, but never the same line as the last call, so if there's a
> bad modem, the user just hangs up and redials, and gets a different
> line.  Bad modems are indicated pretty reliably by various statistics
> that our, cisco, terminal servers keep.  I don't know if "UCD" is
> available from central offices, however.  good luck, faunt@cisco.com

Yes, UCD is certainly available on the 5ESS switch. See Part 2 of "5
ESS Switch The Premier Solution - Feature Handbook" Number 235-390-500. 
But you may not want to pay for it. It should be cheaper to check the
trunks and busy out the bad ones until the modem or loop is fixed.

When in doubt - check it out.


Julian Macassey, n6are  julian@bongo.info.com  ucla-an!denwa!bongo!julian
N6ARE@K6IYK (Packet Radio) n6are.ampr.org [44.16.0.81] voice (213) 653-4495