Aastra 6771 - Enquiry Key; Plus;Minus Key; ESC Key

Aastra 6771/6773/6775 (OpenPhone 71/73/75) System Phones
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It is also possible to enable a second person to listen in on a call over a connected
headset while you are telephoning over the handset. To enable, press the headset key
during the call. Listening-in over the headset is now activated, the LED on the headset
key flashes.
Enquiry Key
RTo initiate and end an enquiry call. After you have ended an enquiry call, switch
back to the call being held with this key.
Plus/Minus Key
=This key offers various functions which depend on the device status:
• It adjusts the volume during open-listening/hands-free mode.
• It adjusts the volume when making a call via the handset.
• It adjusts the volume of the headphones of a headset (the volume of the micro-
phone can be adjusted over the Phone settings MenuCard, see page 114).
• It adjusts the volume of the ringer tone during a call.
• It sets the contrast of the display when the telephone is in the idle state.
• It switches features on/off quickly.
• It changes the volume of the ringer tone and the melody in the Phone settings
MenuCard.
• It moves the cursor when entering call numbers or text.
Tip: If you have already used the plus/minus key to open a menu to
set the display contrast or the volume, your current setting will
automatically be applied after three seconds, without your using
the OK key
O to confirm.
ESC Key
e(Escape key) navigates the menu.
• Short key press: Exits an open input window without changing its contents and/or
returns you to the menu branches.
• Long key press: Exits the menu.