This section details processes relating to auxiliary equipment that can be attached to the system.
Set which extensions can operate the contact closures attached to the system. These can be used to operate devices such as door openers.
•Fax Machine Extension
Indicate which extension is a fax machine.
Indicate which extension is connected to a loudspeaker device.
Indicate which extensions are connected to doorphone devices and which other extensions should be alerted when the doorphone goes off hook.
•Music on Hold
A hold music source can be attached to the system.