Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
463
Event
Description
Register Failed When the IP phone fails to register an account.
Off Hook When the IP phone is off hook.
On Hook When the IP phone is on hook.
Incoming Call When the IP phone receives an incoming call.
Outgoing Call When the IP phone places a call.
Established When the IP phone establishes a call.
Terminated When the IP phone terminates a call.
Open DND
When the IP phone enables the DND mode.
Note: When the DND mode is Phone, the phone sends the action URL for all accounts;
when the DND mode is Custom, the phone only sends the action URL for the cor-
responding account.
Close DND
When the IP phone disables the DND mode.
Note: When the DND mode is Phone, the phone sends the action URL for all accounts;
when the DND mode is Custom, the phone only sends the action URL for the cor-
responding account.
Open Always Forward
When the IP phone enables the always forward.
Note: When the forward mode is Phone, the phone sends the action URL for all accounts;
when the forward mode is Custom, the phone only sends the action URL for the cor-
responding account.
Close Always Forward
When the IP phone disables the always forward.
Note: When the forward mode is Phone, the phone sends the action URL for all accounts;
when the forward mode is Custom, the phone only sends the action URL for the cor-
responding account.
Open Busy Forward
When the IP phone enables the busy forward.
Note: When the forward mode is Phone, the phone sends the action URL for all accounts;
when the forward mode is Custom, the phone only sends the action URL for the cor-
responding account.
Close Busy Forward
When the IP phone disables the busy forward.
Note: When the forward mode is Phone, the phone sends the action URL for all accounts;
when the forward mode is Custom, the phone only sends the action URL for the cor-
responding account.
Open NoAnswer For-
ward
When the IP phone enables the no answer forward.
Note: When the forward mode is Phone, the phone sends the action URL for all accounts;
when the forward mode is Custom, the phone only sends the action URL for the cor-
responding account.
Close NoAnswer For-
ward
When the IP phone disables the no answer forward.
Note: When the forward mode is Phone, the phone sends the action URL for all accounts;
when the forward mode is Custom, the phone only sends the action URL for the cor-
responding account.
Transfer Call When the IP phone transfers a call.
Blind Transfer When the IP phone performs the blind transfer.

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