X-Authentication-Warning: delorie.com: mail set sender to opendos-bounces using -f From: "Archie Swan" To: opendos AT delorie DOT com Subject: X00 and other stuff Message-ID: Date: Sunday, 08 Feb 2004 23:04:00 -500 X-Mailer: Internet Rex gateway (2.29) In-Reply-To: X-Fido-From: Archie Swan, 2:250/501.11 X-Fido-To: shadow AT shadowgard DOT com MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-IgLou-Customer: verified X-Originating-IP: 204.252.74.25 Reply-To: opendos AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: opendos AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk Originally to: shadow AT shadowgard DOT com Hi shadow AT shadowgard DOT com, You wrote to All on 07.02.04 about "X00 and other stuff": [snip to this portion] s> I'll have to look up the settings for "lock baud rate" on a USR. s> That's one of the things I do when I first get a modem. And I then s> save it into the non-volatile RAM in the modem so I can just do an s> ATZ and have the modem be set the way I want it. Make sure to get hold of a USR manual. Reason: USRs, generally, use the ATZ and ATZ1 commands somewhat differently from other modems. i.e. in short:- USR modems restore the port speed that was in use when the AT&W command was issued (saving the profile) and that port speed is restored in the modem when ATZ is issued. e.g.: With your port speed set to 57,600, you issue the following command: AT&F1&W^M. You then change the port speed to 38,400, and issue the following: ATZ1^M. The modem will now be configured to expect a port speed of 57,600. Your PC port speed is 38,400. If the modem now receives a call, it will send RING at 57,600bps, and your program will _not_ see the RING, because the port speed is mismatched. If, however, you send _any_ AT command (except ATZn), the modem will re-configure to the current port speed (38,400) and will operate normally. The rule: configure the modem and save the profile at the _same_ port speed you intend to use with your software. Get the idea ?? TTFN, Archie