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 C_ISMODEM()

 DESCRIPTION

 C_ISMODEM() checks the modem connected to the specified COM port to
 determine if it is ready.

 SYNTAX

 C_ISMODEM(port)

 PARAMETERS

 port (N) is the COM port number to check where 1=COM1, 2=COM2, etc.

 RETURNS

 C_ISMODEM() returns true (.T.) if the modem is ready to send/receive
 or false (.F.) if it is not.

 EXAMPLES

 c_ismodem(1)--> .T.      && modem ready
 ...
 ...
 ...
 if !c_ismodem(1)
   ? "Modem is not ready"
 endif