Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
132
Default
1
Supported
Devices
W53H, W56H, CP930W
Handset UI
W56H/W53H:
OK > Settings > Audio > Advisory Tones > Low Battery
CP930W:
Menu > Settings > Basic Settings > Sound > Low Battery
Base PIN
To avoid unauthorized registration or access to some features on the handset, you should keep the base PIN
secret.
You can change the base PIN for security.
Topic
Base PIN Configuration
Base PIN Configuration
The following table lists the parameters you can use to configure the base PIN.
Parameter
base.pin_code <y0000000000xx>.cfg
Description
It configures the base PIN.
Permitted
Values
Integer from 0000 to 9999
Default
0000
Web UI
Security > Base PIN > Base Unit PIN
Handset UI
W53H/W56H:
OK > Settings > System Settings > Change Base PIN
DD Phone:
Menu > Settings > Advanced Settings (default password: 0000) > Change Password
CP930W:
Menu > Settings > Advanced Settings (default PIN: 0000) > Change PIN
Phone UI
T57W/T54W:
Menu > DECT Settings > Change Base PIN
T53W/T53:
Menu > Settings > DECT Settings > Change Base PIN
Parameter
base.double_pin_code.enable <y0000000000xx>.cfg
Description
It enables or disables double PIN feature.
Permitted
Values
0-Disabled, users use the PIN configured by "base.pin_code" to register the handset or access some
features.
1-Enabled, users use the PIN configured by "base.pin_code_for_register" to register the handset, and

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