Yealink SIP-T31G IP-phone

Yealink T31G is a two-line VoIP phone with HD audio quality, Gigabit Ethernet speed and PoE support. T31G features Yealink's Smart Noise Filtering technology - crystal clear sound quality. T31G is intended to be familiar to users with two line keys and a backlit display. HD audio performance means professional communications from the handset, full duplex speakerphone or wired headset. The phone supports EHS headsets.

T31G supports the open SIP communications protocol-interoperable with VoIP phone systems and services. The phone supports two SIP lines and has a powerful chip to improve performance -designed to last. The Yealink T3 Series of IP Phones feature unified firmware across the series to simplify the deployment, maintenance and updating of the fleet. Power T31G using PoE.

Key Features and Benefits

✔️ Yealink HD Voice
✔️ 2.3” 132x64-pixel graphical LCD with backlight
✔️ 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.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

✔️ 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 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

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)

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

Warranty Period: 3 Years
** Warranty does not cover wear and tear, damages arisen from misuse or use not in accordance with product instructions.