Audio Features
- HD voice: HD handset, HD speaker
- Hearing aid compatible (HAC) handset
- Acoustic Shield
- Smart Noise Filtering
- Audio codec: G.722, PCMU(G.711µ), PCMA (G.711A), 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
Display and Indicator
- 3.7" 360x160-pixel graphical LCD with backlight
- LED for call and message waiting indication
- Dual-colour (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
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 synchronisation 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 optimisation, redial, call hold, volume synchronisation, multiple calls control
- Content Sharing (via Yealink VCD)
- Enhanced DSS key
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 Appearance (BLA)
- Anonymous call, anonymous call rejection
- Hot-desking, voice mail
- Flexible seating, Executive and Assistant
- Call park, call pickup
- Centralised call recording, call recording
Directory
- Local phonebook up to 1000 entries
- Block list
- XML/LDAP remote phonebook
- Google contacts
- Smart dialling
- Phonebook search/import/export
- Call history: dialled/received/missed/forwarded
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 deployment
- 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
- Colour: Classic Grey
- Wall mountable (optional)
- External Yealink AC adapter (optional): 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 (W*D*H*T): 212mm*210.6mm*174.5mm*41.7mm
- Operating humidity: 10~95%
- Operating temperature: -10 to +45 °C (+14 to 113 °)
- Storage temperature: -30 to +70 °C (-22 to +158 °F)
Package Features
- Package content:
- - Yealink SIP-T53 IP phone
- - Handset with handset cord
- - Ethernet Cable
- - Stand
- - Quick Start Guide
- - Power Adapter (Optional)
- Qty/CTN: 5 PCS
- N.W/CTN: 5.8 kg
- G.W/CTN: 6.4 kg
- Giftbox size: 238mm*237mm*103mm
- Carton Meas: 538mm*244mm*250mm