Yealink SIP-T57W Administrator's Guide

Advanced Features
474
Values
Default
Blank
Web UI
Features > Action URL > Call Waiting On
Parameter
action_url.call_waiting_off <y0000000000xx>.cfg
Description
It configures the action URL the phone sends when the call waiting feature is disabled.
Example:
action_url.call_waiting_off = http://192.168.0.20/help.xml?IP=$ip
Permitted
Values
URL within 511 characters
Default
Blank
Web UI
Features > Action URL > Call Waiting Off
Parameter
action_url.headset <y0000000000xx>.cfg
Description
It configures the action URL the phone sends when pressing the HEADSET key.
Example:
action_url.headset = http://192.168.0.20/help.xml?IP=$ip
Permitted
Values
URL within 511 characters
Default
Blank
Supported
Devices
All phones except CP920
Web UI
Features > Action URL > Headset
Parameter
action_url.handfree <y0000000000xx>.cfg
Description
It configures the action URL the phone sends when pressing the Speakerphone key.
Example:
action_url.handfree = http://192.168.0.20/help.xml?IP=$ip
Permitted
Values
URL within 511 characters
Default
Blank
Supported
Devices
All phones except CP920
Web UI
Features > Action URL > Handsfree
Parameter
action_url.cancel_callout <y0000000000xx>.cfg
Description
It configures the action URL the phone sends when canceling the outgoing call in the ring-back state.
Example:
action_url.cancel_callout= http://192.168.0.20/help.xml?IP=$ip
Permitted
Values
URL within 511 characters
Default
Blank

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