Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
532
place a new call.
Default
1
Parameter
phone_setting.end_call_net_disconnect.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to end the call if the network is unavailable during the call.
Permitted
Values
0-Disabled
1-Enabled, the phone will end the call and go to the Idle screen after 5 seconds.
Default
0
Parameter
features.station_name.value <y0000000000xx>.cfg
Description
It configures station name to be displayed on the top-left corner of the LCD screen.
Note: The text displayed might be truncated if “features.station_name.scrolling_display” is set to 0
(Disabled). For T43U/T42G/T42S/T42U/T41P/T41S/T27G phones, the station name is displayed in the
middle bottom of the idle screen.
Permitted
Values
Blank (the label of the default account will be displayed)
String
Default
Blank
Parameter
features.station_name.scrolling_display <y0000000000xx>.cfg
Description
It enables or disables the phone to scroll the string display on the top-left corner of the LCD screen.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter
phone_setting.incoming_call.reject.enable <y0000000000xx>.cfg
Description
It enables or disables the user to manually reject an incoming call on the phone.
Permitted
Values
0-Disabled, the Reject soft key disappears from the incoming call screen; pressing X/Mute key, tap
the on-hook key or using action URI to reject the call is not permitted.
1-Enabled
Default
1
Parameter
features.call_out_directory_by_off_hook.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to automatically dial out the selected contact from Directory once you
press the off-hook key.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
CP920
Parameter
features.ok_key.talking.mode <y0000000000xx>.cfg

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