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Yealink SIP-T54S User Manual

Yealink SIP-T54S
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Customizing Your Phone
57
To unlock the phone via phone user interface:
1. Press any locked key.
2. Enter the desired PIN in the Phone Lock Unlock PIN field.
3. Press the OK soft key to unlock the phone.
The icon disappears from the LCD screen.
You can long press or wait for a period of time (if configured) to lock the phone
again.
Note
To deactivate 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 Disabled from the Lock Enable field.
4. Press the Save soft key to accept the change.
Phone lock is configurable via web user interface at the path Features->Phone Lock.
You can also unlock the phone by administrator password. When you enter the administrator
password to unlock the phone, the phone will turn to the Change PIN screen.

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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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