Yealink SIP-T57W Administrator's Guide

Using Handsets with T57W/T54W/T53W/T53 Phones
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Handset Wallpaper
Wallpaper is an image used as the background for the handset idle screen. Users can select an image from hand-
set’s built-in background.
Topic
Handset Wallpaper Configuration
Handset Wallpaper Configuration
The following table lists the parameter you can use to configure the handset wallpaper.
Parameter
custom.handset.wallpaper <y0000000000xx>.cfg
Description
It configures the wallpaper displayed on the handset LCD screen.
Note: It will take effect on all handsets that are registered on the same phone. It works only if “stat-
ic.auto_provision.handset_configured.enable” is set to 1 (Enabled).
Permitted
Values
1-Wallpaper1
2-Wallpaper2
3-Wallpaper3
4-Wallpaper4
5-Wallpaper5
Default
-1, do not change the wallpaper set on each handset.
Supported
Devices
W53H, W56H
Handset UI
OK > Settings > Display > Wallpaper
Handset Screen Saver
The screen saver of the handset is designed to protect your LCD screen. You can enable the screen saver to pro-
tect the LCD screen, an analog clock will be activated and appear on the LCD screen after the handset is idle for
approximately 10 seconds.
It is only applicable to W56H/W53H handsets.
Topic
Handset Screen Saver Configuration
Handset Screen Saver Configuration
The following table lists the parameter you can use to configure the handset screen saver.
Parameter
custom.handset.screen_saver.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables screen saver feature.
Note: It will take effect on all handsets that are registered on the same phone. It works only if “stat-
ic.auto_provision.handset_configured.enable” is set to 1 (Enabled).
Permitted
Values
-1-Do not modify the configuration.
0-Disabled
1-Enabled, an analog clock will be activated and appear on the LCD screen if no user activity is
sensed for approximately 10 seconds.

Yealink SIP-T57W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Ethernet LAN	Yes
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Security algorithms	AES, HTTPS, MD5, SRTP
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Volume control	Buttons
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	7 \
Display resolution	800 x 480 pixels
Front camera	No
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, iLBC

Weight and Dimensions

Depth	220 mm
Width	259.4 mm
Height	211 mm