Front View
Each device has a display and different keys (some of which have LEDs). A device can only be operated using the keys.
*Further help under Keys and LEDs
Keys and LEDs on the basic unit
1. housing LED
2. Function keys (3x on each side)
3. Dedicated function keys
4. Directional pad and OK
5. Delete, Home and Back
6. Keypad
7. Soft keys: situation-dependent function keys below the display (4x)
a. Microphone
b. Hold
c. Transfer
d. plus
e. Headset
f. Loudspeaker
g. minus
h. Redialling
i. Messages
Keys and LEDs on the key extension module
a. Function keys (10x on each side)
b. control rocker