Yealink SIP-T57W Administrator's Guide

Call Features
398
Default
1
Parameter
features.fwd_mode <y0000000000xx>.cfg
Description
It configures the call forward mode.
Note: It works only if “features.fwd.allow” is set to 1 (Enabled).
Permitted
Values
0-Phone, call forward feature is effective on a phone basis.
1-Custom, you can configure call forward feature on a per-line basis.
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Features > Forward&DND > Forward > Mode
Parameter
features.forward.emergency.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to receive the call from authorized numbers when the call forward fea-
ture is activated.
Note: It works only if “features.fwd.allow” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, the call from authorized numbers will not be forwarded when the call forward feature is
activated.
Default
0
Web UI
Features > Forward&DND > Forward > Forward Emergency
Parameter
features.forward.emergency.authorized_number <y0000000000xx>.cfg
Description
It configures the authorized numbers.
The call from the authorized numbers cannot be forwarded even if the call forward feature is activated.
Multiple numbers are separated by commas.
Note: It works only if “features.fwd.allow” and “features.forward.emergency.enable” are set to 1
(Enabled).
Permitted
Values
String within 511 characters
Default
Blank
Web UI
Features > Forward&DND > Forward > Forward Authorized Numbers
Parameter
forward.international.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to forward incoming calls to international numbers (the prefix is 00).
Note: It works only if “features.fwd.allow” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Features > General Information > Fwd International
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > FWD International > FWD International
Black-and-white Screen Phones:

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