Audio
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, iLBC
Speakerphone
Microphone mute
Voice activity detection
Adaptive jitter buffers
Automatic gain control
Comfort noise generation (CNG)
Anti-clipping (ACLP)
Packet loss concealment (PLC)
Camera
Front camera
Design
Product type	IP Phone
Handset type	Wired handset
Product colour	Grey
Mounting	Desk/Wall
Display
Display	LCD
Display diagonal	17.8 cm (7")
Display resolution	800 x 480 pixels
Touchscreen
Management features
Volume control	Buttons
Integrated voicemail
Network
Ethernet LAN interface type	Gigabit Ethernet
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Supported network protocols	FTP/TFTP/HTTP/HTTPS
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
Wi-Fi
Bluetooth
Quality of Service (QoS) support
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95%
Packaging content
Number of handles included	1 pc(s)
Cables included	LAN (RJ-45)
Quick start guide
Performance
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Phone features
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Answering machine
Do not disturb function
Caller ID
Call waiting
Speed dialling
Call hold
Call forwarding
Conference call
Redialing
Call park
Call pick up
Anonymous call
Anonymous call rejection
Full duplex
Short Message Service (SMS)
Call return
Call transfer
Message-waiting indicator (MWI)
Call history
Ports & interfaces
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
RJ-9 ports quantity	2
DC-in jack
Power
AC adapter input voltage	100 - 240 V
AC adapter output voltage	5 V
AC adapter output current	2 A
Power over Ethernet (PoE)
Weight & dimensions
Width	259.4 mm
Depth	220 mm
Height	211 mm

The Yealink SIP-T57W was designed to be an easy-to-use, high-quality business phone for executives and business professionals
.
With the adjustable 17.78 cm (7 inch) multi-point touchscreen, you can not only easily and flexibly
find a comfortable viewing angle that suits your personal and environmental requirements, but
also benefit from a high-quality visual display and a comfortable one -Touch navigation.
The integrated USB 2.0 port allows for USB recording or connection to a direct wired/wireless USB headset or up to three Yealink EXP50 expansion modules. This makes the Yealink SIP-T57W a powerful and expandable office phone that
offers optimal desktop efficiency and productivity.

Highlights

• Adjustable 17.78 cm (7 inch) LCD screen with touchscreen
• Up to 16 VoIP accounts
• Built-in Bluetooth 4.2
• Paper tag-free design
• Wall mountable
• Built-in dual-band Wi-Fi 2.4G/5G (802.11a /b/g/n/ac)
• USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50
• Dual port Gigabit Ethernet port
• PoE support
• HAC handset

Product type

• Corded device
• ear -Category (ElektroG): relevant, Category 6: small IT and telecommunications devices, small IT and telecommunications devices B2C

Specifications

• Mounting type: surface-mounted
• Fastening: table mounting, wall mounting

Telephone properties

• Headset connectivity: RJ9
• Hands-free function
• Hearing aid compatible
• Telephone type: SIP
• Number of function keys: 8
• Number of telephone book entries: 1000
• Optical call signaling

Connections

• USB
• Number of LAN ports: 2
• Handset connection: coil cord

Display

• Display diagonal inches: 7 \dlash- Display diagonal cm: 17.8 cm
• Display technology: LCD
• touch display
• display type: color
• display lighting

power supply

• PoE standard: PoE - 802.3af
• power supply: optional
• PoE

data transmission

• Bluetooth
• Bluetooth standard: 4.2
• WLAN
• WLAN standard: IEEE 802.11a - WiFi 2, IEEE 802.11b - WiFi 1, IEEE 802.11g - WiFi 3, IEEE 802.11n - WiFi 4, IEEE 802.11ac - WiFi 5
• WLAN frequency band: dual band

basic properties

• Color: dark gray
• Height: 211 mm
• Length/Depth: 220 mm
• Width: 259.4 mm

Scope of delivery

• Yealink SIP-T57W
• Handset with handset cable
• Ethernet cable
• Stand
• First steps