>   HD voice: HD handset, HD speaker

>   Hearing aid compatible (HAC) handset

>   Acoustic Shield

>   Wideband codec: AMR-WB (optional), Opus, G.722

>  Narrowband codec: AMR-NB (optional), Opus, 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 Features

>   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, hoteline

>   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 earphone 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 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

>   Centralized call recording, call recording

>   Visual voice mail

>  3.7″ 360×160-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 port (2.0 compliant)

>  1 x RJ9 (4P4C) handset port

>  1 x RJ9 (4P4C) headset port

Other Physical Features

>  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

>  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 Features

>  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