One Talk T42U Phone - User Guide
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6
NO. Item
Description
1
Phone screen
Shows a screen with backlight that enables you to view menus and data.
2
Power LED
indicator
Indicates call status, message status and system status of the phone.
3
Line keys
Accesses your phone lines and features.
4
Headset key
Toggles the headset on or off. The LED indicator glows green when the headset is
activated.
Mute key
Toggles the microphone on or off. The LED indicator glows green when the mute
feature is activated.
5
Message key
Accesses your voice messages.
Hold key
Places a call on hold or resumes a held call.
Redial Key
Redials a previously dialed number.
Transfer key
Transfers a call.
6
Speakerphone key Toggles the speakerphone (hands-free) mode on or off. The LED indicator glows
green when the speakerphone is activated.
7
Volume key
Adjust the volume of the handset, headset and speaker.
8
Keypad keys
Allow you to enter numbers, letters and special characters. If a menu item has an
index number, you can use the keypad keys to select the item.
9
Navigation keys
•
Scroll through information or options displayed on the screen.
•
Access history and directory respectively.
OK key
Confirms actions or answers incoming calls.
Cancel key
Cancels actions or rejects incoming calls.
10
Soft keys
Access the function displayed on the screen above the soft keys. The soft keys
change depending on what you are doing at the time.
11
Speaker
Provides ringer and speakerphone audio output.
12
Reversible tab
Secures the handset in the handset cradle when the phone is mounted vertically.
For more information on how to adjust the reversible tab, refer to
Mount Quick Installation Guide for Yealink IP Phones
13
Hook switch
Connects or disconnects the phone from the phone line. The hook switch is
automatically activated when a user lifts the handset from the cradle to get a
dial tone.
Power LED indicator
The power LED indicator indicates the call, message and phone’s system status.
LED Status
Description
Solid red
The phone is initializing.
Fast-flashing red (0.3s)
The phone is ringing.
Slowly-flashing red (1s)
The phone receives a voice mail or text message.