Yealink SIP-T43U IP Phone

A well-rounded SIP phone for clear communication, the Yealink SIP-T43U IP Phone is a feature-rich business tool for excellent communications and extended functionality. This SIP-T43U as part of the T4 Series is a 12-line IP phone that comes with a 3.7-inch large black-and-white screen and EXP43 support. United Yealink Optima HD Voice technology and wideband codec of Opus, the T43U also awards you superb audio quality and crystal-clear voice communications. It also feels quicker and more responsive when performing call features.

This SIP-T43U puts dual USB ports in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according to your needs. The Yealink new T4U series offers the same elegant appearance as the T4 line, but with improvements for greater interoperability and better collaboration.

• Sound and Hear with Remarkable Clarity - Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. 
• Efficient Deployment and Management - Yealink T4U series supports effortless mass deployment and Zero Touch Provisioning with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism, making the device management labor-saving and efficient for the administrators.
• Color-screen Expansion Module EXP43 - The 4.3-inch color screen expansion module is designed to offer advanced call handling capabilities with its simplified UI and up to 60 programmable keys for various features.
• Secure Transport and Interoperability - Yealink T4U series use SIP over Transport Layer Security (TLS/SSL), which is the latest network security technology. It’s also compatible with leading soft switch suppliers, such as 3CX, and Broadsoft Broadworks. Moreover, it is carried with dual firmware images that give you enterprise-level protection to avoid bricking your system once an upgrade failed.

Audio

• HD voice: HD handset, HD speaker
• Hearing aid compatible (HAC) handset
• Acoustic Shield
• Codecs: AMR-WB (optional), AMR-NB (optional), Opus, G.722, G.711(A/µ), G.723.1, G.729AB, G.726, 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

• 12 VoIP accounts
•  One-touch speed dial, redial
• Call forward, call waiting, call transfer, call hold
• Call return, group listening, emergency call
• Mute, auto answer, DND, hotline
• 5-way conference call
• 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)
• Dual USB ports (2.0 compliant)
• Bluetooth earphones through BT40/BT41
• Contact synchronization through BT40/BT41
• Wi-Fi through WF40/WF50 
• USB call recording through USB flash drive
• USB headset
• Expansion Module EXP43
• Wireless Headset Adapter EHS40
• 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

IP-PBX 

•  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
• Centralized call recording, call recording
• Visual voice mail

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 information
• 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 paperless DSS keys (3-page view)
• 5 features keys: message, headset, mute, redial, hands-free speakerphone
• 4 context-sensitive “soft” keys
• 6 navigation keys
• 2 volume control keys 
• Illuminated mute key
• Illuminated headset key
• Illuminated hands-free speakerphone key

Interface

• Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), class 2
• 2 x USB ports (2.0 compliant)
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port

Others

• Color: Classic Grey
• Stand with 2 adjustable angles
• Wall mountable
• External Yealink AC adapter (optional): AC 100~240V input and DC 5V/1.2A output
• USB output currency: 5V 500mA
• Power consumption (PSU): 0.9-2.2W
• Power consumption (PoE): 1.5-3.2W
• Dimension (W*D*H*T): 224.9mm*206.2mm*174.9mm*52mm
• Operating humidity: 10~95%
• Operating temperature: -10~50°C (+14~122°F)

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 (TLS)
• HTTPS certificate manager
• AES encryption for configuration file
• Digest authentication
• OpenVPN, IEEE802.1X
• IPv6
• LLDP/CDP/DHCP VLAN 
• ICE
  

Package

• Package content:
• Yealink SIP-T43U IP phone
• Handset with handset cord 
• Ethernet Cable (2m CAT5E UTP Cable)
• Stand
• Quick Start Guide
• Power Adapter (Optional)
• Wall Mount Bracket (Optional)
• Qty/CTN: 5 PCS
• N.W/CTN: 6.0 kg
• G.W/CTN: 6.6 kg
• Giftbox size: 246mm*223mm*120mm
• Carton Meas: 627mm*256mm*235mm