•     HD voice: HD handset, HD speaker

•     Smart Noise Filtering

•     Wideband codec: Opus, G.722

•     Narrowband codec: G.711(A/μ), G.723.1, G.729, G.729A, 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

•     2 VoIP accounts

•     Call hold, mute, DND

•     One-touch speed dial, hotline

•     Call forward, call waiting, call transfer

•     Group listening, SMS, emergency call

•     Redial, call return, auto answer

•     Local 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

•     Integrated screenshots

•     RTCP-XR, VQ-RTCPXR

•     Enhanced DSS Key

Directory

•     Loal 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

•     Call park, call pickup

•     Executive and Assistant

•     Centralized call recording

•     Visual voice mail

•     Call recording

•    2.3” 132×64-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

•    2 line keys with LED

•    6 features keys: transfer, message, headset, redial, mute, hands-free speakerphone

•    5 navigation keys

•    Volume control keys

Interface

•    2 x RJ45 10/100M Ethernet ports

•    1 x RJ9 (4P4C) handset port

•    1 x RJ9 (4P4C) headset port

Other Physical Features

•    Color: Classic Grey

•    Wall mountable

•    External Yealink AC adapter

AC 100~240V input and DC 5V/600mA output

•    Power consumption (PSU): 2-3W

•    Dimension (W*D*H*T): 188mm*189mm*162mm*50mm

•    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

•    Zero-sp-touch, TR-069

•    Phone lock for personal privacy protection

•    Reset to factory, reboot

•    Package tracing export, system log

•    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-T31 IP phone

–  Handset with handset cord

–  Ethernet Cable (1.5m CAT5E UTP Cable)

–  Stand

–  Quick Start Guide

–  Power Adapter (Optional)

•    Qty/CTN: 10 PCS

•    N.W/CTN: 9.8 kg

•    G.W/CTN: 10.81 kg

•    Giftbox size: 213 mm*210 mm*103 mm

•    Carton Meas: 535 mm*443 mm*227 mm

Compliance

REACH