Aastra 9143i Series Administrator's Manual page 51

Overview
IP Phone Models
6753i Key Descriptions*
Keys Key Description
Goodbye key - Ends an active call. The Goodbye key also exits an open
list, such as the Options List, without saving changes.
Options key - Accesses options to customize your phone. Your System
Administrator may have already customized some of your settings. Check
with your System Administrator before changing the administrator-only
options.
Hold key - Places an active call on hold. To retrieve a held call, press the
call appearance button beside the light that is flashing.
Redial key - Redials up to 100 previously dialed numbers. Pressing the
Redial key twice simultaneously redials the last dialed number.
Volume control key - Adjusts the volume for the handset, headset, ringer,
and handsfree speaker.
Line/Call Appearance key - Connects you to a line or call. The Aastra
6753i IP phone supports up to 3 line keys.
Handsfree key - Activates Handsfree for making and receiving calls
without lifting the handset. When the audio mode option is set, this key is
used to switch between a headset and the handsfree speakerphone.
Mute key - Mutes the microphone so that your caller cannot hear you (the
light indicator flashes when the microphone is on mute).
41-001160-03, Rev 00, Releaes 2.4 1-21