Telephony in LiveCode

stephen barncard stephenREVOLUTION2 at
Fri Jan 18 12:23:12 EST 2013

The keyspan adapter requires drivers, and they are still updated regularly.
Until the relatively recent full adoption of USB by PCs   (Macs were the
first personal computer to use USB in 1997)  RS232 was the universal
interface standard for peripherals, and made adoption of these devices
cross-platform as long as the codes were published. Sometimes I've been
able to put a 'man in the middle' tap to a  RS232  connection to see the
commands that the proprietary software sends using a second computer or
even a terminal. And at least for a modem, commands are sent in plain text
using the Hayes AT command set.

On Fri, Jan 18, 2013 at 7:03 AM, Ben Rubinstein <benr_mc at> wrote:

> On 17/01/2013 18:42, Robert Sneidar wrote:
>> ALL USB devices are serial. That is what the S in USB stands for. You may
>> mean I think, that the protocol is similar to 9 pin protocols like RS232? I
>> don't think that is true, but I am not an expert in protocols.
> Fair point.  What I meant (or at least, with hindsight, what I meant to
> mean!) is that while it's true that LiveCode "has no USB support" the
> original poster might well find that LiveCode on a modern machine with no
> RS232 port can operate a USB modem in exactly the same way as HyperCard was
> able to operate an RS232 modem on the hardware of that time.
> LiveCode has no USB support, and for example I don't expect that it would
> be easy to control an arbitrary USB-connected device in the absence of a
> driver for it.  But responding to
> >>> USB modems are cheap and widely available.
> >>
> >> Of course, there's the problem that LiveCode has no USB support.
> >
> > yeah, that mean being stuck with RS-232 and a Keyspan USB adapter if
> > anything.
> I would strongly suspect that a USB modem would be sold with a driver, and
> that a LiveCode stack running on a machine on which the driver has been
> successfully installed would be able to control it using the open
> driver/serialControlString etc elements of the language.
> Ben
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Stephen Barncard
San Francisco Ca. USA

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