Operating instructions
18 Description of controls
Description of controls
Function keys
The following function keys are available:
Key Name Usage
a
On-hook and on/off
key
•End a call
• Cancel functions
• Go back to the next menu level up
• Activate or deactivate the handset
c
Talk key •Answer a call
• Dial a phone number
• Open the redial list
• Access telephone system functions
d
Speakerphone key •Answer a call
• Dial a phone number
• Toggle between handset and speakerphone mode
• Access telephone system functions
f
Message list • Access message lists
*
Star key • When entering the phone number:
– Press and release: Insert "*"
– Press and hold: Insert "R"
• In editor mode (string): Show all special characters
• In idle status: Press and hold to switch on/off the ringer
#
Hash key • When entering the phone number:
– Press and release: Insert "#"
– Press and hold: Insert a dialling pause (for exam-
ple between the prefix and the phone number or
when checking a mailbox)
• In editor mode (string): Toggle between uppercase and
lowercase and digits
• In idle status: Press and hold to switch on/off the key-
pad lock
Alarm and emergen-
cy call key
• For triggering a manual alarm or emergency call
Volume key (+/-) • Adjust the volume for ringtones
• When conducting a call: Adjust the volume in handset
and speakerphone mode and for the headset










