WAITFOR SEXP,VAR,IEXP

 Function
  Wait for a specific string of text to come in from the modem.
  (WAIT FOR is a synonym).

 Syntax
  WAITFOR str,flag,sec

   str   - Any string expression.
   flag  - A variable to return the status.
   sec   - An integer expression with the maximum number of seconds to wait.

 Remarks
  This statement can be used to wait for specific replies to questions,
  responses from terminal emulators and modem result codes.  If the text
  that is needed isn't received within the specified time period, or if
  there is not a remote caller online, flag will be set to FALSE.  If the
  text is found, then flag will be TRUE.  If a remote caller is online this
  statement will wait up to the maximum time for the text and return TRUE
  or FALSE as appropriate.  If the caller is local, it will immediately
  return FALSE.  Also, the text to wait for is not case sensitive.
  "connect" will match "CONNECT".

 Examples
  BOOLEAN flag
  KBDCHKOFF
  CDCHKOFF
  DTROFF
  DELAY 18
  DTRON
  SENDMODEM "ATDT5551212" ' Please don't really dial this number!
  WAITFOR "CONNECT",flag,60
  IF (!flag) SPRINLN "No connect found in 60 seconds"
  CDCHKON
  KBDCHKON