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Yealink SIP-T54S User Manual

Yealink SIP-T54S
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Customizing Your Phone
55
Phone Lock
You can lock your phone temporarily when you are not using it. This feature helps to protect
your phone from unauthorized use.
Phone lock consists of the following:
Menu Key: The Menu soft key is locked. You cannot access the menu of the
phone until unlocked.
Function Keys: The function keys are locked. You cannot use the MESSAGE, REDIAL,
HOLD, MUTE, TRANSFER, OK, X, navigation keys and soft keys until
unlocked.
All Keys: All keys are locked except the Volume key, digit keys, # key, * key,
HEADSET key and Speakerphone key. You are only allowed to dial
emergency numbers, reject incoming calls by pressing the X key or
Reject soft key, answer incoming calls by lifting the handset,
pressing the Speakerphone key, the HEADSET key, the OK key or
Answer soft key, and end the call by hanging up the handset,
pressing the Speakerphone key, End Call soft key or X key.
Note
To activate the phone lock via phone user interface:
1. Press Menu->Basic->Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Phone Lock Unlock PIN field, and then press
the OK soft key.
3. Press or , or the Switch soft key to select Enabled from the Lock Enable field.
4. Press or , or the Switch soft key to select the desired type from the Lock Type
field.
5. Enter the desired interval of automatic phone lock in the Lock Time Out field.
The default timeout is 0. It means the phone will not be automatically locked. You need to
long press to lock it immediately when the phone is idle.
The emergency number setting, if desired, must be made before lock activation. For more
information, refer to Emergency Number on page 114.

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Yealink SIP-T54S Specifications

General IconGeneral
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Wall mountableYes
Wi-Fi-
Bluetooth version2.1+EDR
Ethernet LAN interface typeGigabit Ethernet
Display diagonal4.3 \
Display resolution480 x 272 pixels
Lines quantity16 lines
Phonebook capacity1000 entries
Number of VoIP accounts16
AC adapter input voltage100 - 240 V
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
Voice codecsG.722, G.723, G.723.1, G.726, G.729B, OPUS, iLBC
Front cameraNo
Volume controlDigital
Operating temperature (T-T)-10 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Operating system installedLinux
Weight and Dimensions IconWeight and Dimensions
Depth218.8 mm
Width233 mm
Height172.6 mm

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