Yealink SIP-T57W Administrator's Guide

Security Features
106
Default
0
Web UI
Features > Phone Lock > Phone Lock Enable
Phone UI
Color Screen Phones:
Menu > Basic > Phone Lock > Lock Enable
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Phone Lock > Lock Enable
Parameter
phone_setting.phone_lock.lock_key_type <y0000000000xx>.cfg
Description
It configures the type of phone lock.
Note: It works only if “phone_setting.phone_lock.enable” is set to 1 (Enabled).
Permitted
Values
0-All Keys
1-Function Keys
2-Menu Key
Default
0
Supported
Devices
All phones except T57W, T48U, T48S and T48G
Web UI
Features > Phone Lock > Phone Lock Type
Phone UI
Color Screen Phones:
Menu > Basic > Phone Lock > Lock Type
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Phone Lock > Lock Type
Parameter
phone_setting.phone_lock.unlock_pin <y0000000000xx>.cfg
Description
It configures the password for unlocking the phone.
Permitted
Values
Characters within 15 digits
Default
123
Web UI
Features > Phone Lock > Phone Unlock PIN (0~15 Digit)
Phone UI
Color Screen Phones:
Menu > Basic > Change PIN
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Change PIN
Parameter
phone_setting.phone_lock.lock_time_out <y0000000000xx>.cfg
Description
It configures the idle time (in seconds) before the phone is automatically locked.
The default value is 0 (the phone is locked only by long pressing the pound key or pressing the phone
lock DSS key).
Note: It works only if “phone_setting.phone_lock.enable” is set to 1 (Enabled).
Permitted
Values
Integer from 0 to 3600
Default
0

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