| Getting Started | 13
No. Item Description
9 On-hook Key/Power Key
• Press briefly to return to the previous screen.
• Long press to return to the idle screen.
• Press to turn the handset on.
• Long press on the idle screen to turn the handset off.
• Cancels actions or ends a call.
• Rejects an incoming call.
10 Off-hook Key
• Answers an incoming call.
• Enters the redial calls list.
• Places a call in receiver or headset mode.
11 Keypad Provides digits, letters, and special characters.
12 TRAN Key Transfers a call to another party.
13 Mute Key Toggles mute feature on or off.
14 Microphone Picks up audio.
15 Speaker Plays audio in handsfree mode.
16 3.5 mm Headset Jack Connects a standard 3.5 mm headset.
W78H Hardware
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