This feature is only available from version 3.2.0.0 onwards.
Make sure you have selected the correct PABX profile for your PBX.
Click on "Options", "File Input" on the PABX3 menu.
The "File Input" configuration screen should appear.
Make sure that "Enabled" is checked.
Choose a filename by clicking on the open folder to the right of
the filename box. Select the file which must be used as input.
Please note: If you use wildcards, you need to enter the filepath and file name manually.
Set the interval for loading the file (default 15 minutes)
If you do not want the PABX3 Interface to use the COM port, make sure
the following is set:
Under "Communications", "Offline" must be set, and "Timeout" must be set to 0.
Then the PABX3 Interface won't open the COM port.