It is possible to have an extension which has no default associated user. This can occur for a number of reasons:
The extension has no Base Extension setting associating it with a user who has the same setting as their Extension to indicate that they are the extension's default associated user.
The extension's default associated user has logged in at another extension. Typically they will be automatically logged back in at their normal extension when they log out the other phone.
The extension's default associated user cannot be automatically logged in as they are set to Forced Login.
Phones with no current user logged in are associated with the setting of the NoUser user in the system configuration. This user cannot be deleted and their Name and Extension setting cannot be edited. However their other settings can be edited to configure what functions are available at extensions with no currently associated user.
By default the NoUser user has Outgoing Call Bar enabled so that the extension cannot be used for external calls. The users first programmable button is set to the Login action.
Avaya 1100 Series, 1200 Series, M-Series and T-Series phones, when logged out as No User, the phones are restricted to logging in and dial emergency calls only.
NoUser Source Numbers
The SourceNumbers tab of the NoUser user is used to configure a number of special options. These are then applied to all users on the system. For details refer to the User | Source Numbers section.
