Yealink SIP-T31G IP Phone

As a very fashionable and friendly entry-level Gigabit IP phone, the Yealink SIP-T31G IP Phone has an extra-large 132x64-pixel graphical LCD with a backlight that brings a clear visual experience for users. This IP phone offers support for two VoIP accounts and includes local 5-way conferencing to maximize productivity. It ensures you work in different situations working with the adjustable multi-angle stand.

Equipped with a powerful chip, the phone as part of T3 Series Phones owns a stronger computing ability and more upgraded functions, which ensures higher productivity and a smoother office experience. The T31G features built-in Power over Ethernet (PoE) and superb high-definition (HD) sound quality which you can enjoy amazing sound clarity and reliable performance day in and day out. Its easy-to-use and powerful features together with a reasonable price deliver excellent voice communications solutions! And what makes this SIP-T31G different from SIP-T31P is that SIP-T31G has dual-port gigabit Ethernet ports while SIP-T31P has 2 x RJ45 10/100M Ethernet ports.

• Superior HD Audio, Better Communication - The Yealink T3 series provides distraction-free communications with industry-leading Smart Noise Filtering Technology, which delivers excellent sound quality without extraneous noises and allows fluent conversations.
• Classic Design, Practical Details - Designed by Yealink's original team, the T3 series inherits the design concept of the Yealink IP phone family. The advanced design including modern appearances and ergonomic details enables an easier and more friendly operation experience for users.
• Stronger Performance, More Possibilities - Equipped with a powerful chip, the T3 series owns a stronger computing ability and more upgraded functions, which ensures higher productivity and a smoother office experience. Due to great performance, the T3 series is capable to extend more services for different business demands.
• All-in-One Platform, Convenient Management - Proven reliability and integrations for Yealink Device Management Platform, installed the unified firmware, T3 series is simple to deploy and manage, which allows a significant reduction in the operation and maintenance cost.

Audio

• HD voice: HD handset, HD speaker
• Smart Noise Filtering
• Wideband codec: Opus, G.722
• Narrowband codec: PCMU (G.711A), PCMA (G.711μ), G.723.1, G.729, G.729A, G.729B, 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

• 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

• 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
• 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

Interface

• Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), class 2
• 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 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
• UDP/TCP/DNS-SRV (RFC 3263)
• QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
• SRTP for voice
• Transport Layer Security (TLS 1.3) 
• 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

• 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 to +45 °C (+14 to 113 °F)
• Storage temperature: -30 to +70 °C (-22 to +158 °F)

Packages

• Package content:
• Yealink SIP-T31G IP phone
• Handset with handset cord
• Ethernet Cable (1.5m CAT5E UTP Cable)
• Stand (not applicable to US wall plate Standard)
• 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