[comp.dcom.modems] Amstrad PPC-640D modem problem.

g7ahn@cc.imperial.ac.UK ("K. Krallis") (07/02/89)

  A few months ago I bought an AMSTRAD PPC640D portable PC with     
an internal 2400 bps modem (V22bis) . This modem is called PC-2000 and
Amstrad claims that it's Hayes-compatible.
   Unfortunately this modem, being the UK model, does not support the 
Bell protocols. When I issue  an ATB1 command it returns an error 
code. The same happens with ATB17.
   The problem is  that over here the CCITT standards are recommended
but not enforced and  many services still use Bell 103/212A instead of
V21/V22. Unfortunately I cannot access any of this services.
   As the hardware for for Bell 103/212A is built in the modem, it seems 
that the firmware just inhibits this setting and the problem could be solveD
by replacement of the ROM chip on the Modem board with
one for an American model. Does anybody know a supplier of this item
in the States? I would like also to hear from users of the American model 
of PPC64D about their experiences with the modem.

     Costas Krallis
      P.O.Box 3066
     GR-102 10  ATHENS
       GREECE

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