Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
248
Description
It enables or disables the power LED indicator to flash when the phone receives an incoming call.
Permitted
Values
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator fast flashes (0.3s) red)
For T19(P) E2 phones:
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator fast flashes (0.3s) yellow)
Default
1
Supported
Devices
All phones except CP920
Web UI
Features > Power LED > Ringing Power Light Flash
Parameter
phone_setting.mail_power_led_flash_enable <y0000000000xx>.cfg
Description
It enables or disables the power LED indicator to flash when the phone receives a voice mail or a text
message.
Note: It works only if “account.X.display_mwi.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator slowly flashes (1s) red)
2-Enabled (if there are unread voice mails or text messages, the power LED indicator slowly flashes
(1s) red) even when the phone is busy, but value set by "phone_setting.talk_and_dial_power_led_
enable" has a higher priority.)
For T19(P) E2 phones:
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator slowly flashes (1s) yellow)
2-Enabled (if there are unread voice mails or text messages, the power LED indicator slowly flashes
(1s) yellow even when the phone is busy, but value set by "phone_setting.talk_and_dial_power_led_
enable" has a higher priority.)
Default
1
Supported
Devices
All phones except CP920
Web UI
Features > Power LED > Voice/Text Mail Power Light Flash
Parameter
phone_setting.mute_power_led_flash_enable <y0000000000xx>.cfg
Description
It enables or disables the power LED indicator to flash when a call is muted.
Permitted
Values
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator fast flashes (0.3s) red)
For T19(P) E2 phones:
0-Disabled (power LED indicator does not flash)
1-Enabled (power LED indicator fast flashes (0.3s) yellow)
Default
0
Supported
Devices
All phones except CP920

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