Audio Features

Yealink SIP- T31P

? HD voice: HD handset, HD speaker, Yealink SIP- T31P
? Smart Noise Filtering
? Wideband codec: Opus, G.722
? Narrowband codec: G.711(A/?), 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
? 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? 132×64-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
? 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 VLAN
? ICE

Package Features
? Package content:
– Yealink SIP-T31P 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: 9.79 kg
? G.W/CTN: 10.83 kg
? Giftbox size: 213 mm*210 mm*103 mm
? Carton Meas: 535 mm*443 mm*227 mm