(PMOD) Rockwel RCV288 and ACF modem problems

J. James Hall (grick@jasper.southwind.net)
Thu, 1 Jul 1999 10:39:36 -0500

We have a number of customers here who are unable to connect to either our
PM3's or PM4's (running ComOS 3.8.2c2) with their hardware based Rockwell
ACF_DP1 ACF_DPI, and RCV288 modems (ATI3=V2.061-V34_ACF_DP1 for example).
The customers are all reporting pretty much the same symtoms: Dialing, long
handshaking, then a NO CARRIER (or as Windows likes to say, "The computer
you are dialing is not answering, please try agian later.")

I have tried adding 3-4 commas after the phone number. This either a) makes
no difference or b) with enough commas, causes the handshake to revert to a
steady tone then eventually timeout.

I have searched the web for init strings for these modems with very little
sucess. I have just gone through all the init strings for Rockwell
28.8/33.6 modems I have been able to find on the web--even Rockwell modems
with slightly different chipsets. The results are either ERROR (or as
Windows would say, "The computer is not receiving a response from the
modem... bla bla"), or no difference in connection ability whatsoever.

A couple customers have even FAXed me their modem manuals, but as you would
guess, the manuals are VERY generic and tell how to change speaker volume,
tone/pulse dialing, etc... nothing really of any value.

Has anyone else dealt with these hardware-based Rockwell modems and have a
possible solution? Even a 14.4k or 9600bps connection would probably be
enough to satisify many of these customers, as most people with modems that
old are not hard-core netaddicts, and something suitable for simply checking
e-mail would satisfy them.

Thank you for any insight you might have.

-- 
The Chico, California, City Council enacted a ban on nuclear weapons,
setting a $500 fine for anyone detonating one within city limits.
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 SouthWind Internet Access *      **   PGP public key available   **
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