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14 Model 57i CT IP Phone User Guide
IP Phone Keys and Key Descriptions
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 57i CT IP phone supports up to 4 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).
Navigation keys - Pressing the UP and DOWN arrow keys
lets you view different status and text messages on the LCD
display (if there is more than 1 line of status/text
messages). These buttons also let you scroll through menu
selections, such as the Options List.
Pressing the LEFT and RIGHT arrow keys lets you view the
different line/call appearances. While in the Options List,
these keys allow you to exit or enter the current option.
When you are editing entries on the display, pressing the
LEFT arrow key erases the character on the left; pressing
the RIGHT arrow key sets the option.
Keys Key Description