Very Computer

by **Kendall P Bull** » Sun, 06 Apr 1997 04:00:00

>Can anyone provide me with the Modem Command that will cause an
>incoming call to announce it is a Data call? I was told that
>"ATDT^" would do it. It didn't. It is needed to help my
>messaging center software to ID an incoming data call. The tech
>support from the software manufacturer has not helped. Can
>someone else please?

Hmm, last I checked this wasn't possible, because the *answering* modem
(i.e., the one *receiving* the call) starts making noise *first*. So how
could you tell if you had an incoming data or voice call? (FAXes,
fortunately, make high pitched beeps when they call, so you know when you
get a FAX call.)

Now, that said, I've seen things advertised that supposedly could switch
between voice/modem/fax incoming calls . . . but I'll be darned if I know
how they're supposed to work.

I know this doesn't really help, but I'm not sure what you're looking for
is possible. Good luck to ya though! :)

Kendall

--

Web: http://www.his.com/kendall/

by **Mister Epon** » Mon, 07 Apr 1997 05:00:00

>Can anyone provide me with the Modem Command that will cause an
>incoming call to announce it is a Data call? I was told that
>"ATDT^" would do it. It didn't. It is needed to help my
>messaging center software to ID an incoming data call. The tech
>support from the software manufacturer has not helped. Can
>someone else please?

On a standard, Hayes compatible modem, ATA causes the modem to answer
the call (try it, it should squeal a la connecting).

If it's some weird new type of modem, YMMV.

HTH,
Dom
--
Dominic Davidson: | "...Unix, MS-DOS, and Windows NT (also known
Avid Linux User | as the Good, the Bad, and the Ugly)."
Pratchett Fan | (By Matt Welsh)
------------------------------------------------------------------------

by **Johannes Beekhuiz** » Tue, 08 Apr 1997 04:00:00

Hello,

p> incoming call to announce it is a Data call? I was told that
p> "ATDT^" would do it. It didn't.

That only works on /outgoing/ calls and toggles the calling tone, only for
that
call. Some modems have it on by default, others off. So unless you may
expect
your customers to cooperate and only call you with this /on/, it's rather
useless for you.

Regards,

Hans.
--
Fidonet: Johannes Beekhuizen 2:281/554

The Wizard from the Dunes, Katwijk ZH (NL)

by **Johannes Beekhuiz** » Tue, 08 Apr 1997 04:00:00

Hello,

DTRk> (FAXes, fortunately, make high pitched beeps when they call, so you
know
DTRk> when you get a FAX call.)

Some modems can do that. It's called the 'calling tone'. But some have it
on
by default, others not, and it can only be toggled for a single call. So I
wouldn't rely on this feature to detect data calls.

Regards,

Hans.
--
Fidonet: Johannes Beekhuizen 2:281/554

The Wizard from the Dunes, Katwijk ZH (NL)

by **Patricia Wrigh** » Sat, 12 Apr 1997 04:00:00

[snippy of bit I don't have an answer for]

Quote:> Now, that said, I've seen things advertised that supposedly could switch
> between voice/modem/fax incoming calls . . . but I'll be darned if I know
> how they're supposed to work.

What we had going at a club I was a member of was something like this.
It was
a little box that plugged into the phone line. Then you plugged your
phone
modem and fax machines into it.

It could automatically determine the difference between a fax and a
voice call.
(apparently fax machines do something to the line) Modems, however,
were a
little different. You had to manually switch as you called in.

What happened was when you called in the switch box would pick up the
line and
simulate a ringing noise. If you wanted the modem you had to enter a
code between
the first two rings. For example my dial up string for this system
would be
atdt 2742534,,22
which would enter 22 between the first two rings of the phone and switch
me over
to the modem line.

The only thing you had to be careful of was if you were in the club
office you
always had to let the phone ring once so the box could do the
switching. If it
rang more than once then it was a voice call and you could pick up the
phone.

This box (though expensive) had the added benifit of cutting off the
other lines
when one was in use so you didn't have to worry about someone picking up
the phone
in the middle of a modem connection.

However, they are a little expensive for home use.

Patricia