!!! HELP !!! Problem with UNIX tip (cu) and modem

[Larry Dighera]

In article <296 at mrsvr.UUCP> ssa at mrsvr.UUCP (xxxx) writes:
>
>       I have a MultiTech 224E modem connected to a Sun 3/50 ttya port.
>       I have it set up so it will answer on the third ring, and
>       saved this configuration in the non-volitile ram.  

I presume you mean that you issued the &W0 command to store the current
parameters in the modem's non-volitile RAM.  To check that they were in
fact saved, you should then issue an ATZ reset command followed by the
ATL5 command which should indicate that your setup is still in effect.
Once this is done, only an &F will restore the factory parameters.  And,
&W1 will cause the modem not store parameters.

>       The problem
>       is every time I dial a number using tip (or cu) the modem 
>       resets it self to factory configuration, unless I turn it off
>       and on (giving it the ATZ command also works). 

It sounds like either your communications program, or getty if it is
running on the port, is issuing the &F command.

>       This is a pain in the 
>       neck because I am using my office phone, and if I forget to reset 
>       the modem it picks up the phone immidiately, therefore greeting the 
>       caller with a high pitch tone! 
>
>       My question is: is there a way to tell the modem to reset itself
>       (ie: give it the ATZ command) after the dialing, and also:
>       what makes the modem go back to factory configuration?

Unless you have source code for your dialer you'll have to write shell
script wrappers to reset the modem for those programs that dial out.

Much of this operation is dependent on the particular version of 
the modem's software in ROM.  Fortunately, Multi-Tech has a BBS
on-line for support.  They also post the latest version of their 
ROM code so, you can burn it into a set of chips for an easy
update.  You can reach the Multi-Tech support BBS at: (612) 631-0922.
If you would rather talk to a live tech-support person, call them
toll free at (800) 328-9717.

Larry Dighera

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