Yealink SIP-T57W Administrator's Guide

Phone Customization
205
Default
1
Supported
Devices
All color screen phones
Web UI
Settings > Preference > Screensaver Display Clock (not configurable when the Screensaver Type is
set to Server XML)
Phone UI
Menu > Basic > Display > Screensaver > Display Clock (not configurable when the Screensaver Type
is set to Server XML)
Parameter
screensaver.type <y0000000000xx>.cfg
Description
It configures the type of screen saver to display.
Permitted
Values
0-System, the LCD screen will display the built-in picture.
1-Custom, the LCD screen will display the custom screen saver images (configured by the parameter
“screensaver.upload_url”). If multiple images are uploaded, the phone will display all images altern-
ately. The time interval is configured by the parameter “screensaver.picture_change_interval”.
2-Server XML, the LCD screen will display XML items (configured by the parameter “screensaver-
.xml_browser.url”) when the screen saver starts.
Default
0
Supported
Devices
All color screen phones
Web UI
Settings > Preference > Screensaver Type
Phone UI
Menu > Basic > Display > Screensaver > Screensaver Type
Note: It is configurable only if you have uploaded custom image files to the phone.
Parameter
screensaver.upload_url <y0000000000xx>.cfg
Description
It configures the access URL of the custom screen saver image.
Example:
screensaver.upload_url = http://192.168.10.25/Screencapture.jpg
During auto provisioning, the phone connects to the HTTP provisioning server “192.168.10.25”, and
downloads the screen saver image “Screencapture.jpg”.
If you want to upload multiple screen saver images to the phone simultaneously, you can configure as
follows:
screensaver.upload_url = http://192.168.10.25/Screencapture.jpg
screensaver.upload_url = http://192.168.10.25/Screensaver.jpg
Permitted
Values
URL within 511 characters
Default
Blank
Supported
Devices
All color screen phones
Web UI
Settings > Preference > Screensaver Type (Custom)/Screensaver Type (Server XML) > Upload
Screensaver
Parameter
screensaver.delete <y0000000000xx>.cfg
Description
It deletes the specified or all custom screen saver images.
Example:

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