gsmOffHook (Function)

This function checks whether the GSM module is in active conversation with another phone.

Input:

None.

Returns: BOOL

Declaration:

FUNCTION gsmOffHook : BOOL;

Example:

INCLUDE rtcu.inc
 
PROGRAM test;
 
// Turn on power to the GSM module, use no pin code
gsmPower(power := TRUE);
 
BEGIN
  ...
  // Check if GSM module is in session with another telephone
  IF gsmOffHook() = TRUE THEN
     // We are connected to another telephone
     ...
  ELSE
     // No session active
     ...
  END_IF;
END;
 
END_PROGRAM;