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Re: Acoustic Couplers

Well, the ting is (any hard core techie correct me if Im wrong), but a modem
RJ-11 jack is 2-wire,a nd telephoen handsets are 4 wire.  And IIRC there is some
change betwean the signal that comes from a handset and the signal that goes over
RJ-11.

The benefit of usign a prebuilt solution os you know it'll work, and things like
drivers are already written.

I wish the US was a cool as Japan, where all the NTI payphones have ISDN jacks
ont hem.

 wrote:

> Okay, apparently I'm the only one on the list that didn't know what an
> acoustic coupler was, and tried to invent it. (heh)
> However, although it appears there are several commercial versions available,
> all of them were at least $100+, which is more than I'd care to spend.  I
> looked for schematics or something to make my own, but all I could find were
> some Tandy support docs
> (http://support.tandy.com/support_accessories/5690.htm).  I am theorizing out
> of my league here, but wouldn't you just have to hook a phone handset into
> your modem?  By the time the data leaves your modem, it's already in sound
> form, isn't it?
> I realize the possibilities for baud rates are small, but I'm only looking
> for small document exchanges, not full blown web browsing capabilities...
>
> -Noah
>
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