Re: A86: Modems: AT command set

Re: A86: Modems: AT command set

• To: assembly-86@lists.ticalc.org
• Subject: Re: A86: Modems: AT command set
• From: Butler Family <butler2@erols.com>
• Date: Fri, 20 Mar 1998 07:07:49 -0500
• Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
• References: <199803200716.BAA18860@unix.tfs.net>
• Reply-To: assembly-86@lists.ticalc.org

it has two modes data and command in command mode it looks for at commands by
checking the first two letters of a line in data mode the only command you can
really use is +++ which switches back to command.  when you connect it
automatically switches to data mode i think thats it.

Patrick

David Phillips wrote:

> I know this may be a little off topic, but...
> I know you can give Hayes compatible modems AT commands like ATDT (dial).
> But, how does the modem know the difference between an AT command and
> regular data?  For example, I can go into my terminal program and type
> ATDTxxx-xxxx to dial-up my isp, but when is see the "logon:" prompt, I can
> type AT or whatever, and the modem doesn't take it as a command.  Why?
> Could someone please explain how all the AT commands work (not the commands,
> but how the modem receives them)?
>
> Thanks,
>
> David Phillips
> electrum@tfs.net

• A86: Modems: AT command set
• From: David Phillips <electrum@tfs.net>

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