Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
451
parked against the monitored phone.
This value uses the same macro action string syntax as an Enhanced DSS key.
Example:
blf.enhanced.parked.talking.action = newcall
Note: It works only if “blf.enhanced.parked.enable” is set to 1 (Enabled).
Permitted
Values
String
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
Parameter
blf.enhanced.parked.idle.action <y0000000000xx>.cfg
Description
It configures the behavior when pressing the BLF/BLF list DSS key if the monitor is idle and a call is
parked against the monitored phone.
This value uses the same macro action string syntax as an Enhanced DSS key.
Example:
blf.enhanced.parked.idle.action = newcall
Note: It works only if “blf.enhanced.parked.enable” is set to 1 (Enabled).
Permitted
Values
String
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
BLF Key LED/Icon and Behavior for Hold State Configuration
The following table lists the parameters you can use to configure BLF key LED/icon and Behavior for hold state (the
call on the monitored phone is placed on hold).
Parameter
blf.enhanced.hold.enable <y0000000000xx>.cfg
Description
It enables or disables the custom configuration when the call on the monitored phone is placed on
hold.
Permitted
Values
0-Disabled
1-Enabled, the phone will display the custom BLF/BLF List DSS key LED status/icon colors.
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G, T19(P) E2 and CP920
Parameter
blf.enhanced.hold.led <y0000000000xx>.cfg
Description
It configures the custom BLF/BLF List DSS key LED status/icon colors when the call on the monitored
phone is placed on hold.
This value uses the same macro action string syntax as an Enhanced DSS key.
Example:
blf.enhanced.hold.led = $LEDg1000o$
For T57W/T48U/T48S phones, the BLF/BLF List DSS key field displays a green icon for 1000ms and
then turns to white.

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