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From: larry@kitty.UUCP
Newsgroups: mod.telecom
Subject: Re: Rochester telephone service
Message-ID: <8511092155.AA01482@ucbvax.berkeley.edu>
Date: Sat, 9-Nov-85 16:55:47 EST
Article-I.D.: ucbvax.8511092155.AA01482
Posted: Sat Nov  9 16:55:47 1985
Date-Received: Mon, 11-Nov-85 06:04:29 EST
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> I make fairly frequent calls from northern N.J. (201) to Hamilton, N.Y.
> (315)824-XXXX, and vice versa.  I very often get the tones and the "All lines
> are busy, try again" msg.  Is Hamilton in the Rochester LATA?
> 
> One thing *I think* I've noticed.  It seems that if I punch in the
> numbers slowly and very evenly (about 2 or 3/sec.) the success ratio
> tends to be much higher.
> 
> Would that be a crossbar trying to deal with the output from a DTMF
> decoder or something of the like?

	Dialing speed (rotary (DP) or DTMF, no matter which) has absolutely NO
effect on call completion success, the only exception being if your dialed
digits are too slow or too fast for detection (i.e., < 6 || > 15 pps DP or
> 10 digits/sec DTMF).  If you are in a crossbar office, you are effectively
"offline" when dialing; your dialed digits are being decoded and stored in an
`originating register' (OR).  Only when the OR detects the completion of a
dialing sequence (or abort of same through a timeout) is the call routed to
the `marker' for route section and transmission through the DDD network.
	Also, the method of station dialing - DP or DTMF - has absolutely NO
bearing on the signalling (i.e., digit transmission) to the destination
office.

===  Larry Lippman @ Recognition Research Corp., Clarence, New York        ===
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