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Yealink SIP-T53W Administrator's Guide

Yealink SIP-T53W
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Phone Customization
209
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Display > Backlight > Active Level
Parameter
phone_setting.inactive_backlight_level <y0000000000xx>.cfg
Description
It configures the intensity of the LCD screen when the phone is inactive.
Note: If expansion module EXP20 or EXP40 is connected, the backlight on the expansion module
automatically changes to match this setting.
Permitted
Values
0-Off, it works only if “phone_setting.backlight_time is not set to 1 (Always On).
1-Low
Default
1
Supported
Devices
All color screen phones
Web UI
Settings > Preference > Inactive Level
Phone UI
Menu > Basic > Display > Backlight > Inactive Level
Parameter
phone_setting.backlight_time <y0000000000xx>.cfg
Description
It configures the delay time (in seconds) to change the intensity of the LCD screen when the phone is
inactive.
Permitted
Values
0-Always On
1-Always Off (not applicable to color screen phones)
15-15s
30-30s
60-1min
120-2min
300-5min
600-10min
1800-30min
Default
T57W/T54W/T53W/T53/T48U/T48S/T48G/T46U/T46S/T46G/T43U/T29G: 0
T42G/T42S/T42U/T41P/T41S/T40P/T40G/T27G/T23P/T23G/T21(P) E2/CP920: 30
Supported
Devices
All phones except T19(P) E2
Web UI
Settings > Preference > Backlight Time(seconds)
Phone UI
Color Screen Phones:
Menu > Basic > Display > Backlight > Backlight Time
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Display > Backlight > Backlight Time
Label Length for Line Key Display
By default, the line key label only displays the first few characters when the length of the label exceeds the max-
imum length. You can specify the line key label length as needed. It is only applicable to color screen phones.
When label length feature is set to Default:

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Yealink SIP-T53W Specifications

General IconGeneral
MountingDesk/Wall
Handset typeWired handset
Product typeIP mobile phone
Product colorGray
Keypad illuminationYes
Wi-Fi standards802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version4.2
Security algorithmsAES, HTTPS, SIPS
Networking standardsIEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface typeGigabit Ethernet
Supported network protocolsFTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modesIn-band, Out-of band, SIP info
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
Lines quantity8 lines
Phonebook capacity1000 entries
Number of VoIP accounts12
AC adapter input voltage100 - 240 V
AC adapter output current1.2 A
AC adapter output voltage5 V
Power consumption (typical)2.3 W
Volume controlButtons
Number of programmable keys8
Storage temperature (T-T)-30 - 70 °C
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Display diagonal3.7 \
Display resolution360 x 160 pixels
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Number of DECT wireless handsets4
Voice codecsG.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC
Weight and Dimensions IconWeight and Dimensions
Depth210.6 mm
Width212 mm
Height174.5 mm

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