Audio Features
> HD voice: HD handset, HD speaker
> Wideband codec: AMR-WB (optional), Opus, G.722
> Narrowband codec: G.711(A/µ), 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
> 3 VoIP accounts
> One-touch speed dial, redial
> Call forward, call waiting
> Call transfer, call hold
> Call return, group listening, SMS
> Mute, auto answer, DND
> 3-way conference call
> Direct IP call without SIP proxy
> Ring tone selection/import/delete
> Hotline, emergency call
> Set date & time manually or automatically
> Dial Plan
> XML Browser
> Action URL/URI
> RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
> 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
> Message Waiting Indicator (MWI)
> Call park, call pickup
> Intercom, paging, music on hold, call recording
> Flexible seating
> Executive and Assistant
> Centralized call recording
> Visual Voice Mail
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
> 3 line keys with LED
> 5 features keys: message, headset, mute, redial,
hands-free speakerphone
> 4 context-sensitive “soft” keys
> 6 navigation keys
> 2 volume control keys
> Mute key
> Headset key
> Hands-free speakerphone key
Interface
> Dual-port Gigabit Ethernet
> 1 x RJ9 (4P4C) handset port
> 1 x RJ9 (4P4C) headset port
> 1 x RJ12 (6P6C) EHS port
> Power over Ethernet (IEEE 802.3af), Class 2
Other Physical Features
> Color: Classic Grey
> Stand with 2 adjustable angles
> Wall mountable
> External Yealink AC adapter (optional)：
AC 100~240V input and DC 5V/600mA output
> Power consumption (PSU): 0.9-1.3W
> Power consumption (PoE): 1.1-1.6W
> Dimension (W*D*H*T):
212mm*189mm*175mm*54mm
> Operating humidity: 10~95%
> Operating temperature: -10~50°C (+14~122°C)
Management
> Configuration: browser/phone/auto-provision
> Auto provision via FTP/TFTP/HTTP/HTTPS for mass
deploy
> Auto-provision with PnP
> BroadSoft device management
> 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-T40G IP phone
– Handset with handset cord
– Ethernet Cable
– Stand
– Quick Start Guide
– Power Adapter (Optional)
> Qty/CTN: 5 PCS
> N.W/CTN: 5.7 kg
> G.W/CTN: 6.4 kg
> Giftbox size: 246mm*223mm*120mm
> Carton Meas: 620mm*233mm*258mm