Audio
Voice codecs	G.711a, G.711u, G.722, G.723.1, G.726, G.729A, G.729B, G.729ab, OPUS, iLBC
Speakerphone
Microphone mute
Voice activity detection
Adaptive jitter buffers
Automatic gain control
Comfort noise generation (CNG)
Packet loss concealment (PLC)
Camera
Front camera
Design
Product type	IP Phone
Handset type	Wired handset
Product colour	Grey
Mounting	Desk/Wall
Device lock
Wall mountable
Display
Display	LCD
Display diagonal	9.4 cm (3.7")
Display resolution	360 x 160 pixels
Touchscreen
Backlight display
Management features
Volume control	Buttons
Number of programmable keys	8
Integrated voicemail
Network
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Security algorithms	AES, HTTPS, SIPS
Networking standards	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)
Ethernet cable
Handset
Quick start guide
Stand included
Performance
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Phone features
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
Answering machine
Hot desking
Call waiting
Speed dialling
Call hold
Call forwarding
Conference call
Redialing
Caller ID
Do not disturb function
Call park
Call pick up
Anonymous call
Anonymous call rejection
Full duplex
Direct call
Short Message Service (SMS)
Phonebook sharing
Call return
Call transfer
Call history
Emergency call
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	1.2 A
Power consumption (typical)	2.3 W
Power consumption (Power over Ethernet (PoE))	3.1 W
Power over Ethernet (PoE)
Weight & dimensions
Width	212 mm
Depth	210.6 mm
Height	174.5 mm

The Yealink SIP-T53 was designed to be an easy-to-use, high-quality business phone for executives and business people.
The adjustable 9.39 cm (3.7 inch) graphical LCD display makes it easy and flexible
to find a comfortable viewing angle that suits your personal and environmental requirements.
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-T53 a powerful and expandable office phone that offers optimal desktop efficiency and productivity.

Highlights

• Adjustable 9.4 cm (3.7 inch) LCD display
• Up to 12 VoIP accounts
• Bluetooth via BT 40
• Paper tag-free design
• Wall mounting possible
• WLAN via WF40/WF50
• USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50
• Dual port Gigabit Ethernet port
• Power over Ethernet port (IEEE 802.3af), Class 2
• Hearing aid compatible handset (HAC)

Product type

• Terminal Corded
• 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 , USB
• hands-free function
• hearing aid compatible
• telephone type: SIP
• number of function keys: 5
• number of telephone book entries: 1000
• optical call signaling

ports

• USB
• number of LAN ports: 2
• receiver connection: spiral cord

display

• display diagonal inches: 3.7 \dlash- display diagonal cm: 9.4 cm
• Display technology: LCD
• Display type: monochrome
• Display lighting

Power supply

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

Basic properties

• Color: Dark gray
• Height: 174.5 mm
• Length/depth: 210.6 mm
• Width: 212 mm

Scope of delivery

• Yealink SIP-T53
• handset with handset cable
• Ethernet cable
• Stand
• Getting started