Especially designed for busy executives and professionals, Yealink SIP-T53 is an easy-to-use Prime Business Phone with an adjustable 3.7-inch graphical LCD that you can easily and flexibly find the comfortable viewing angle according to the personal and environmental needs. Working with Yealink Bluetooth USB Dongle BT40 and Yealink Wi-Fi USB Dongle WF40/WF50, the SIP-T53 IP Phone ensures you to keep up with the modern wireless technology and take the first chance in the future wireless age. Its built-in USB 2.0 port allows for USB recording or a direct wired/wireless USB headset or up to three Yealink EXP50 expansion modules connection. Benefitting from these features, the Yealink SIP-T53 is a powerful and expandable office phone that delivers optimum desktop efficient and productivity.

Features:

• 3.7" 360x160-pixel graphical LCD with backlight
• Adjustable LCD screen
• Dual firmware images
• T53/T53W/T54W/T57W firmware unified
• Bluetooth via BT40
• Wi-Fi via WF40/WF50
• USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50
• Up to 12 VoIP accounts
• Dual-port Gigabit Ethernet
• PoE support
• HAC Handset
• Paperless label design
• Wall mountable

Warranties - Returns:
Money Return:	Repair - Replacement:
20 days	24 months

Audio Features	• HD voice: HD handset, HD speaker • Hearing aid compatible (HAC) handset • Acoustic Shield • Smart Noise Filtering • Audio codec: Opus, G.722, PCMU (G.711A), PCMA (G.711µ), G.729, G.729A, G.729B, G.729AB, G.726, G.723.1, iLBC • DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO • Full-duplex hands-free speakerphone with AEC • VAD, CNG, AEC, PLC, AJB, AGC
Phone Features	• 12 VoIP accounts • Call hold • Mute, DND • Redial, call return • auto answer • One-touch speed dial, hotline • Call forward, call waiting, call transfer • Group listening, SMS • Emergency call • 5-way conferencing • Direct IP call without SIP proxy • Ring tone selection/import/delete • Set date time manually or automatically • Dial plan • XML Browser, Action URL/URI • RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035) • USB port (2.0 compliant) for: - Wired/wireless USB headset - USB call recording through USB flash drive - Bluetooth headset through BT40 - Bluetooth call through BT40 - Mobile contacts synchronization through BT40 - Simultaneous connection of one headset and one mobile phone through BT40 - Wi-Fi through WF40/WF50 - Expansion module EXP50 (up to 3) - Wireless Headset Adapter EHS40 • USB/Bluetooth connectivity to Yealink CP900/CP700 speakerphone, USB connectivity to Yealink UH36 headset: - Basic functions: Answer / end, call mute - Enhanced function: audio optimization, redial, call hold, volume synchronization, multiple calls control • Content Sharing (via Yealink VCD) • Enhanced DSS key
Directory	• Local phonebook up to 1000 entries • Black list • XML/LDAP remote phonebook • Smart dialing • Phonebook search/import/export • Call history: dialed/received/missed/forwarded
Corded-Cordless Phone (via DECT Dongle DD10K)	• Up to 4 DECT cordless handsets • Up to 4 concurrent calls • Support Yealink W52H/W53H/W56H/DD Phone/CP930W • Slave Handset for Master Deskset
IP-PBX Features	• Busy Lamp Field (BLF), Bridged Line Apperance (BLA) • Anonymous call, anonymous call rejection • Hot-desking, voice mail • Flexible seating, Executive and Assistant • Call park, call pickup, call recording • Centralized call recording
Display and Indicator	• 3.7" 360x160-pixel graphical LCD with backlight • LED for call and message waiting indication • Dual-color (red or green) illuminated LEDs for line status • Intuitive user interface with icons and soft keys • Multilingual user interface • Caller ID with name and number • Power saving
Feature keys	• 8 line keys with LED • 8 line keys can be programmed up to 21 various features (3-page view) • 5 features keys: mute, headset, message, redial, hands-free speakerphone • 4 context-sensitive “soft” keys • 6 navigation keys • Volume control keys • Illuminated mute/headset/hands-free speakerphone key
Interface	• Dual-port Gigabit Ethernet • Power over Ethernet (IEEE 802.3af), class 2 • 1 x USB port (2.0 compliant) • 1 x RJ9 (4P4C) handset port • 1 x RJ9 (4P4C) headset port
Management	• Configuration: browser/phone/auto-provision • Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy • Auto-provision with PnP • Broadsoft device management • Zero-sp-touch, TR-069 • Phone lock for personal privacy protection • Reset to factory, reboot • Package tracing export, system log
Network and Security	• SIP v1 (RFC2543), v2 (RFC3261) • Call server redundancy supported • NAT traversal: STUN mode • Proxy mode and peer-to-peer SIP link mode • IP assignment: static/DHCP • HTTP/HTTPS web server • Time and date synchronization using SNTP • UDP/TCP/DNS-SRV(RFC 3263) • QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP • SRTP for voice • Transport Layer Security (TLS1.3) • HTTPS certificate manager • AES encryption for configuration file (AES256) • Digest authentication • OpenVPN, IEEE802.1X, L2TP VPN • IPv6, LLDP/CDP/DHCP VLAN, ICE > WPA2/WPA3 > Secure boot > GARP (Generic Attribute Registration Protocol)
Other Physical Features	• Color: Classic Grey • Wall mountable • External Yealink AC adapter: AC 100~240V input and DC 5V/1.2A output • USB output currency: 5V 500mA • Power consumption (PSU): 1.3W-2.3W • Power consumption (PoE): 1.8W-3.1W • Dimension (WDHT): 212mm210.6mm174.5mm41.7mm • Operating humidity: 10~95% • Operating temperature: -10~50°C (+14~122°F)
Package Features	• Package content: - Yealink SIP-T53 IP phone - Handset with handset cord - Ethernet Cable - Stand - Quick Start Guide - Power Adapter • Qty/CTN: 5 PCS • N.W/CTN: 5.8 kg • G.W/CTN: 6.4 kg • Giftbox size: 238mm237mm103mm • Carton Meas: 538mm244mm250mm