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SIP - T31G Phone

SIP - T31G Phone





Gigabit IP Phone with 2 Lines & HD voice

The Description


As a very fashionable and friendly entry-level Gigabit IP phone, Yealink SIP-T31G has an extra-large 132x64-pixel graphical LCD with backlight that brings clear visual experience for users. The T31G offers support for two VoIP accounts and includes local 5-way conferencing to maximize productivity. Working with the adjustable multi-angle stand, the T31G IP phone ensures you to work in different situation. Meanwhile, the T31G features built-in Power over Ethernet (PoE) and superb high definition (HD) sound quality. Easy-to-use and powerful features together with reasonable price deliver excellent voice communications solution.


• Yealink HD Voice

• 2.3” 132x64-pixel graphical LCD with back


• Dual-port Gigabit Ethernet

• PoE support

• Opus codec support

• Up to 2 SIP accounts

• Local 5-way conferencing

• Support EHS Wireless Headset

• Unified Firmware

• Support YDMP/YMCS

• Stand with 2 adjustable angles

• Wall mountable

Audio Features


• HD voice: HD handset, HD speaker

• Smart Noise Filtering

• Wideband codec: Opus, G.722

• Narrowband codec: 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



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


• Enhanced DSS Key



• 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


Display and Indicator

• 2.3” 132x64-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



• Dual-port Gigabit Ethernet

• Power over Ethernet (IEEE 802.3af), class 2

• 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

• Power consumption (PoE): 3-4W

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

• Operating humidity: 10~95%

• Operating temperature: -10~50°C (+14~122°F)



• 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


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


• 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


 • ICE


Package Features

• Package content:

- Yealink SIP-T31G 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: 9.98 kg

• G.W/CTN: 10.836 kg

• Giftbox size: 213 mm*210 mm*103 mm

• Carton Meas: 535 mm*443 mm*227 mm