AASTRA 53i 安装指南
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Model 55i IP Phone Installation Guide 5
Key Panel
Key Panel
6 programmable keys with LEDs
High quality speakerphone
HAC handset
High quality speakerphone
HAC handset
Navigational keys
8-line LCD screen
Keypad
8-line LCD screen
Keypad
Goodbye key
Options key
Hold key
Redial Key
Volume control
Options key
Hold key
Redial Key
Volume control
Speakerphone/headset toggle key
Mute key
4 call appearance lines
Mute key
4 call appearance lines
Message waiting lamp
6 dynamic context-
sensitive softkeys