JW>
  > What I neeed is an example of how to communicate with the comport
  > (c/c++) .
JW>

  fstream modem("com4") ;
  modem << "ATZ\r" << flush ;

  If you are expecting to receive the modem as your standard input and
  output handles, then substitute `cout'/`cin' as appropriate.

  > JdeBP <
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