Yealink SIP-T57W. Product type: IP Phone, Product colour: Grey, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: In-band, Out-of band, SIP info. Phonebook capacity: 1000 entries. Volume control: Buttons. Display diagonal: 17.8 cm (7"), Display resolution: 800 x 480 pixels

Specification

Product
Product id	655263
Brand	Yealink Network Technology
Partnr	T57W
EAN/UPC code	6938818303249
Technical details
Speakerphone	Y
Display
Display resolution	800 x 480 Pixels
Display diagonal	7 inch
Touchscreen	Y
Phone features
Answering machine	Y
Caller ID	Y
Do not disturb function	Y
Redialing	Y
Conference call	Y
Call forwarding	Y
Call hold	Y
Speed dialling	Y
Number of VoIP accounts	16
Call return	Y
Call waiting	Y
Call transfer	Y
Phonebook capacity	1000 entries
Message-waiting indicator (MWI)	Y
Call history	Y
Short Message Service (SMS)	Y
Call park	Y
Call pick up	Y
Anonymous call	Y
Anonymous call rejection	Y
Full duplex	Y
Audio
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, iLBC
Voice activity detection	Y
Adaptive jitter buffers	Y
Automatic gain control	Y
Comfort noise generation (CNG)	Y
Packet loss concealment (PLC)	Y
Network
Bluetooth	Y
Ethernet LAN	Y
Ethernet LAN interface type	Gigabit Ethernet
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Wi-Fi	Y
Quality of Service (QoS) support	Y
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
Camera
Front camera	N
Security
Security algorithms	AES, HTTPS, MD5, SRTP
Ports & interfaces
Ethernet LAN (RJ-45) ports	2
USB 2.0 ports quantity	1
RJ-9 ports quantity	2
DC-in jack	Y
Power
AC adapter input voltage	100 - 240 V
Power over Ethernet (PoE)	Y
AC adapter output voltage	5 V
AC adapter output current	2 A
Design
Product type	IP phone
Handset type	Wired handset
Mounting	Desk/Wall
Weight & dimensions
Width	259.4 mm
Depth	220 mm
Height	211 mm
Performance
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Management features
Integrated voicemail	Y
Volume control	Buttons
Colour
Product colour	Grey
Microphone
Microphone mute	Y
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 procent
Packaging content
Cables included	LAN (RJ-45)
Number of handles included	1 stuk(s)
Quick start guide	Y
Logistics data
Harmonized System (HS) code	85171800