Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Use the following mapping:
“WWW” represents the abbreviation of the week;
“DD” represents a two-digit day;
“MMM” represents the first three letters of the month;
“YYYY” represents a four-digit year, and “YY” represents a two-digit year.
Default
0
Web UI
Settings > Time&Date > Date Format
Handset UI
W53H/W56H:
OK > Settings > Display > Date Format
DD Phone:
Menu > Settings > Basic Settings > Time&Date > Time & Date Format > Date Format
CP930W:
Menu > Settings > Basic Settings > Display > Date Format
Parameter
handset.X.hac.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the HAC (Hearing Aid Compatibility) handset settings.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All handsets except DD phones
Parameter
static.auto_provision.handset_configured.enable <y0000000000xx>.cfg
Description
It enables or disables the handsets to keep user personalized settings after auto provisioning.
Note: It is only applicable to the custom handset related configurations.
Permitted
Values
0-Disabled, the phone will not deliver custom handset configurations via auto provisioning/handset
reboot to the handset. The custom handset settings can be only changed via the handset user inter-
face.
1-Enabled, the phone will deliver the custom handset configurations via auto provisioning to the hand-
set. Handset reboot or registration will also trigger the phone to deliver the stored handset settings to
the handset. When the parameter "static.auto_provision.custom.handset.protect" is set to 0 (Disabled),
the personalized handset settings will be overridden; if the parameter "static.auto_pro-
vision.custom.handset.protect" is set to 1 (Enabled), the personalized handset settings will not be over-
ridden.
Default
1
Supported
Devices
All handsets except DD phones
Parameter
static.auto_provision.custom.handset.protect <y0000000000xx>.cfg
Description
It enables or disables the handsets to keep user personalized settings after handset reboot or regis-
tration.
Note: It works only if "static.auto_provision.handset_configured.enable" is set to 0 (Disabled). It is only
applicable to the custom handset related configurations.
Permitted
Values
0-Disabled
1-Enabled

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