- Percentage of Incoming Calls resulting in Messages Displays the number of incoming calls answered, which resulted in the caller leaving a voice message, as a percentage of the total number of incoming calls answered. This percentage does not include Notify Me messages.
- Subscriber Logons (TUI) as a percentage of Incoming Calls Displays the number of times subscribers successfully logged onto the TUI, as a percentage of the total number of incoming calls answered by the system.
- Subscriber Logons (TUI) as a percentage of Logon Attempts Displays the number of times that subscribers successfully logged onto the TUI, as a percentage of the total number of times that subscribers attempted to log onto the TUI.
- Percentage of Failed Logon Attempts Displays the number of TUI logon attempts by subscribers that failed due to subscriber action or disconnection before the retry count was reached, as a percentage of the total number of times that subscribers attempted to log onto the TUI.
- Percentage of Subscriber Logon Failures Displays the number of TUI logon attempts by subscribers that failed due to the subscriber entering an invalid password or mailbox number, as a percentage of the total number of times that subscribers attempted to log onto the TUI.