This utility can be used to update the number of callers to your system.
This number is stored in the message base file for the Main Board conference.
To load PCBNum, change to the subdirectory where you installed PCBoard and type PCBNUM and press ENTER. The following question will be asked:

Location+Name of Main Messsage Base?

Enter the drive, path, and filename of your Main Board message base. If you are unsure of the location of this message base, abort the program by pressing CTRL-C and load PCBSetup to check the location of this file. Next, enter the new number of callers that have called 1your system. Once you have entered this number, the message base will be updated and your system will use the new number that you entered.