Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Save the language pack and place it to the provisioning server.
Custom Language for Phone Display Configuration
The following table lists the parameters you can use to configure a custom language for the phone display.
Parameter
gui_lang.url <y0000000000xx>.cfg
Description
It configures the access URL of the custom LCD language pack for the phone user interface.
Note: You can also download multiple language packs to the phone simultaneously.
Permitted
Values
URL within 511 characters
Default
Blank
Parameter
gui_lang.delete <y0000000000xx>.cfg
Description
It deletes the specified or all custom LCD language packs of the phone user interface.
Permitted
Values
For example http://localhost/all or http://localhost/X.GUI.name.lang
X starts from 017, “name” is replaced with the language name.
Default
Blank
Example: Setting a Custom Language for Phone Display
The following example shows the configuration for uploading custom language files “017.GUI.English_17.lang” and
“018.GUI.English_18.lang”, and then specify “017.GUI.English_17.lang” to display on the phone user interface.
These language files are customized and placed on the provisioning server “192.168.10.25”.
Example
gui_lang.url= http://192.168.10.25/017.GUI.English_17.lang
gui_lang.url= http://192.168.10.25/018.GUI.English_18.lang
lang.gui=English_17

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