As a very fashionable and friendly entry-level IP phone, Yealink SIP-T31 has an extra-large 132x64-pixel graphical LCD with backlight that brings clear visual experience for users. The T31 offers support for two VoIP accounts and includes local 5-way conferencing to maximize productivity. Working with the adjustable multi-angle stand, the T31 IP phone ensures you to work in different situation. Easy to-use and powerful features together with reasonable price deliver excellent voice communications solution.

Warranties - Returns:
Money Return:	Repair - Replacement:
20 days	24 months

Specifications
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 • 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 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
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 (WDHT): 188mm189mm162mm50mm • 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 VLAN • ICE
Package Content	Yealink SIP-T31 IP phone Handset with handset cord Ethernet Cable (1.5m CAT5E UTP Cable) Stand Quick Start Guide Power Adapter