SPECIFICATIONS:
Audio Features | • 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 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 | 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 1* • 1 x RJ9 (4P4C) handset port • 1 x RJ9 (4P4C) headset port * Applies to the phone with a V2 logo or later on the label | 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 to +45°C (+14 to 113°F) • Storage temperature: -30 to +70°C (-22 to +158°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 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) | Package Features | • 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 • 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 |
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