Q168: Waiting for modem to come ready?


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Q.
Waiting for modem to come ready?

A.
Date: Wed, 18 Sep 1996 14:13:49 +0200 (MST)
From: Matthias Apitz <Matthias.Apitz@SOFTCON.de >
Subject: Re: Waiting for modem to come ready

Wolfgang Baudler wrote:
    
    Hi,
    
    Thanks for the hints so fare...
    
    I somehow managed to get the right logs for my problem (see below).

...and with this log your problem perhaps can be solved, see
below :-))
    
    Is anybody using an ELSA or TKR modem sucessfully with HylaFAX? Your
    config-files could save a lot of time...
    And what devices do I have to use for faxgetty and for HylaFAX? /dev/ttyS?
    or /dev/cua?
    
    Log:
    ====
    
    Sep 17 23:02:51 lucutus FaxGetty[1151]: OPEN /dev/ttyS1
    Sep 17 23:02:51 lucutus FaxGetty[1151]: MODEM set DTR OFF
    Sep 17 23:02:51 lucutus FaxGetty[1151]: DELAY 2600 ms
    Sep 17 23:02:54 lucutus FaxGetty[1151]: MODEM set DTR ON
    Sep 17 23:02:54 lucutus FaxGetty[1151]: MODEM set baud rate: 38400 baud, input
    flow RTS/CTS, output flow RTS/CTS
    Sep 17 23:02:54 lucutus FaxGetty[1151]: MODEM flush i/o
    Sep 17 23:02:54 lucutus FaxGetty[1151]: <-- [15:ATZE0V1Q0S0=0H\r]
    Sep 17 23:02:54 lucutus FaxGetty[1151]: --> [14:ATZE0V1Q0S0=0H]
                                                    ^^^^^^^^^^^^^^
as you can see the command string contains "E0" but the modem is not
in echo-off mode after the reset-cmd "ATZE0V1Q0S0=0H";

the behaviour of modems regarding the command-buffer after "ATZ"
is undefined; some modems are just cleaning the buffer during ATZ
and don't executing all commands behind ATZ on the command line;
the echo of the commands from the modem are read by faxgetty(1M)
and faxgetty(1M) don't understand them correctly;

don't use "ATZ" in ModemResetCmds: (see also man config(4F));

	matthias 


Note: Some of the hyperlinks (e.g. for the man pages) can only work, if the HylaFAX software and the full documentation are installed on your system.

Matthias Apitz / guru@softcon.de ; (07:34:58 AM 01/27/97)