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What is RPI?

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Gene Feng

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Jun 26, 1994, 10:48:38 PM6/26/94
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Could anyone tell me what "RPI compatible software" means? It is
required if I want use Zoom 14.4 PC internal modem. I have Crosstalk
for Windows, and ProComm; are there RPI compatible? Thank you.

--
+-------------------------------+-------------------------------+
|Gene Feng |fe...@bigdog.engr.arizona.edu |
|Radiation Oncology |(602)626-7516 |
|University Medical Center | |
|Tucson, AZ 85724 | |
+-------------------------------+-------------------------------+

Peter Wai Kwok Lie

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Jun 28, 1994, 1:03:15 AM6/28/94
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fe...@bigdog.engr.arizona.edu (Gene Feng) writes:

>Could anyone tell me what "RPI compatible software" means? It is
>required if I want use Zoom 14.4 PC internal modem. I have Crosstalk
>for Windows, and ProComm; are there RPI compatible? Thank you.

RPI represents another cost-cutting feature available for lowest-price
modems. To put it simply, data compression and error correction (e.g.
CCITT V.42bis, V.42) can be removed from hardware - thus cutting cost.
Through the RPI, however, a software can be written to provide these
features.

Usually an RPI modem will come with an RPI-aware software (e.g. the
low-end RPI models of Supra come with the COMit which supports RPI,
providing MNP 2,4,5,7, V.42 and V.42bis). I don't think many commercial
packages provide RPI support. Current releases of the most popular
shareware communication programs (Telix and Telemate) don't support RPI
either.

Best Regards,
Peter Wai-Kwok Lie
--
| Computer Science | Life is a harsh Role Playing Game. si |
| Chinese University | I can't save/load game (undo) or pause. |
| of Hong Kong | Cheating in RPG leads to quick success. |
| wk...@cs.cuhk.hk | Cheating in Life leads to tragedy. gh |

Kevin Kenney

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Jun 28, 1994, 6:39:34 PM6/28/94
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Note that the soon-to-be-released Procomm Plus for Windows v2.0 will
support RPI. (I tested the beta: the NDAs ended 2 weeks ago...)
Have Fun, KpK


Tony Zuccarino

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Jun 29, 1994, 9:20:18 PM6/29/94
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In article <Cs3CpF.Kuu@eng_ser1.ie.cuhk.hk>, wk...@cs.cuhk.hk (Peter Wai
Kwok Lie) wrote:

> Usually an RPI modem will come with an RPI-aware software (e.g. the
> low-end RPI models of Supra come with the COMit which supports RPI,
> providing MNP 2,4,5,7, V.42 and V.42bis). I don't think many commercial
> packages provide RPI support. Current releases of the most popular
> shareware communication programs (Telix and Telemate) don't support RPI
> either.
>

Ask your favourite software developer if they can support RPI - Rockwell
is always happy to support software developers in this effort.

--
Tony Zuccarino Internet: tony.zu...@nb.rockwell.com
Product Marketing
Rockwell International

"The above comments do not necessarily represent
Rockwell International, but are my personal views."
---------------------------------------------------------------------------------------------------------------

Tony Zuccarino

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Jun 30, 1994, 3:46:42 AM6/30/94
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In article <kenneyCs...@netcom.com>, ken...@netcom.com (Kevin Kenney)
wrote:

> Note that the soon-to-be-released Procomm Plus for Windows v2.0 will
> support RPI. (I tested the beta: the NDAs ended 2 weeks ago...)
> Have Fun, KpK

And more are coming after that...

Bill Mayhew

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Jun 30, 1994, 9:35:20 AM6/30/94
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In article <tony.zuccarin...@zuccmac.nb.rockwell.com> tony.zu...@nb.rockwell.com (Tony Zuccarino) writes:
>
>> Note that the soon-to-be-released Procomm Plus for Windows v2.0 will
>> support RPI. (I tested the beta: the NDAs ended 2 weeks ago...)
>> Have Fun, KpK
>
>And more are coming after that...
>

I wonder when when it is supposed to ship? I got a solicitation in
the mail two days ago to upgrade to the new version.


--
Bill Mayhew NEOUCOM Computer Services Department
Rootstown, OH 44272-0095 USA phone: 216-325-2511
w...@uhura.neoucom.edu amateur radio 146.58: N8WED

Christian Weisgerber

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Jun 30, 1994, 5:25:14 PM6/30/94
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fe...@bigdog.engr.arizona.edu (Gene Feng) writes:

> Could anyone tell me what "RPI compatible software" means?

Software that supports the Rockwell Protocol Interface.
RPI allows communications software to emulate MNP, LAPM, V.42bis on
otherwise dumb modems.

> It is required if I want use Zoom 14.4 PC internal modem.

Strictly speaking it isn't required. It's required if you want to use
error control and compression.

> I have Crosstalk for Windows, and ProComm; are there RPI compatible?

Don't know, chances are they aren't. (If they are, it's mentioned in the
manual.)

--
Christian 'naddy' Weisgerber, Germany na...@mips.ruessel.sub.org

Tony Zuccarino

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Jul 1, 1994, 8:41:10 PM7/1/94
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In article <2uvd7q$5...@mips.ruessel.sub.org>, na...@mips.ruessel.sub.org
(Christian Weisgerber) wrote:

> fe...@bigdog.engr.arizona.edu (Gene Feng) writes:
>
> > Could anyone tell me what "RPI compatible software" means?
>
> Software that supports the Rockwell Protocol Interface.
> RPI allows communications software to emulate MNP, LAPM, V.42bis on
> otherwise dumb modems.
>
> > It is required if I want use Zoom 14.4 PC internal modem.
>
> Strictly speaking it isn't required. It's required if you want to use
> error control and compression.
>
> > I have Crosstalk for Windows, and ProComm; are there RPI compatible?

Procomm for Windows is supposed to be supporting RPI. Check with them -
version 1.0 and beyond can use a Procomm patch to enable the RPI.

Christian Weisgerber

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Jul 1, 1994, 8:45:18 PM7/1/94
to
tony.zu...@nb.rockwell.com (Tony Zuccarino) writes:

> Ask your favourite software developer if they can support RPI - Rockwell
> is always happy to support software developers in this effort.

So if Rockwell went ahead and made the RPI specs *public*, everybody
would be happy.

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