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Path: utzoo!watmath!clyde!rutgers!lll-lcc!well!rab
From: rab@well.UUCP
Newsgroups: comp.dcom.modems
Subject: Re: Hayes command set oversight/problem
Message-ID: <2594@well.UUCP>
Date: Mon, 16-Feb-87 05:20:30 EST
Article-I.D.: well.2594
Posted: Mon Feb 16 05:20:30 1987
Date-Received: Tue, 17-Feb-87 02:42:20 EST
References: <871@basser.oz> <1408@cbmvax.cbmvax.cbm.UUCP>
Reply-To: rab@well.UUCP (Bob Bickford)
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 40

In a previous article George Robbins writes:
>
>Your modem is not "hayes compatible" in this mode!  Hayes modems HANG-UP
>when you type the +++ sequence.  If you have a US Robotics or other modem
>that does not hang up, then there is probably a switch to make it work
>in real hayes mode, where the problem you describe is moot.
>

   wrong, Wrong, WRONG!!  My Hayes 1200b *never* hung up when I entered
command mode.  Try reading the f***ing manual, George.  Oh, as it happens,
the only 'Hayes compatible' modem I have ever seen that hangs up when
the user types the +++ sequence is a USR.  Piece of junk, on that score
alone....!

  Quoting from page 4-2 of the Smartmodem 1200 Hardware Reference Manual,

|   WAIT AT LEAST 1 SECOND (After the last character transmitted)
|
|   Enter:   +++
|
|   WAIT AT LEAST 1 MORE SECOND (Before transmitting another character)
|
|   The Smartmodem 1200 returns to the local command state and
|   sends the usual result code OK.  The Smartmodem 1200 will not release
|   the telephone line unless it receives an ATH (or hang up) com-
|   mand or the carrier signal is lost.

  Also of note from page 4-2:

|   When in originate mode, it is recommended that the escape
|   code be disabled or set to a value other than that used by the
|   originator.  Refer to Chapter 9, "Local Interface Parameters" S2
|   and S12 and "Additional Program Considerations" number 8.

  I think that's pretty clear.

-- 
Robert Bickford         {hplabs, ucbvax, lll-lcc, ptsfa}!well!rab
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