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BusinessPhone – Ericsson Dialog 4422 IP Office86
Option unit
(Dialog 4422 v. 2 phone only).
If your phone is equipped with an option unit, you can use this
menu to select the function of the option unit.
Change the function of the option unit
Settings Ô Press
ì Press + or - until the Option unit menu is selected.
 Press.
The displays shows:
ì Press to change between the functions Extra Bell, Busy
Signal and Combined.
• Extra Bell: The extra bell is activated in parallel with the ring
signal. A free on second call does not activate the extra bell
function.
• Busy Signal: The busy signal is activated when your phone is
busy (i.e. during calls). The function can be used to control e.g.
a Do-not-disturb lamp at the door.
• Combined Bell / Busy Signal: Activated in parallel with the ring
signals and steady active when your phone is buys (i.e. during
calls). A free on second call does not activate the extra bell
function.
Note: The menu key Cancel can be used to leave the menu
without saving the changes.
 Press to store the selected function (see display).
í Press to return to the previous menu.
Settings
ÕÔ Press to return to idle mode.
s Extra Bell
r Busy Signal