AASTRA 57i 安装指南
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Model 57i IP Phone Installation Guide 5
Key Panel
Key Panel
High quality speakerphone
HAC handset
HAC handset
Navigational keys
11-line LCD screen
Keypad
11-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
12 softkeys
12 softkeys
- 6 static
- 6 dynamic
- 6 dynamic