You add a user ID, caller ID, or both when you want to receive debug information on that specific ID. If you do not know the user ID, you can enter the caller ID. You can remove a user ID or caller ID from the list when you no longer want to receive debug information about that specific ID. You modify a user ID or caller ID when you want to add user IDs or caller IDs to the active list you are monitoring. Details
To add a user ID or caller ID
From the Modify menu, select "User ID" or
"Caller ID," or click the Modify button.
In the Add User or Add Caller ID text box, type a
username or telephone number.
To remove a user ID or caller ID
From the Modify menu, select "User ID" or
"Caller ID," or click the Modify button. The ID must
be in the Available column to be deleted.
To modify a user ID or caller ID
From the Modify menu, select "User ID" or
"Caller ID," or click the Modify button. The Modify
Users or Modify Caller IDs dialog box appears.