Yealink T40G | Entry-level IP phone with three lines and HD voice

Yealink T40G

The Yealink T40G is a feature-rich SIP phone that enhances daily
interoperability and unifies communications for busy users. It is intuitively designed with ease-of-use in mind.

Enhance productivity

The Yealink T40G is built with Gigabit Ethernet to rapidly facilitate call handling. Its programmable keys enable extensive productivity-enhancing features, like BLF, SCA, call transfer and more. The T40G is also equipped with Power over Ethernet (PoE), superb high definition (HD) audio quality and a rich visual experience.

2.3” black and white LCD

Three Way Audio Conferencing

HD Voice Technology

4 Line Keys and 3 Memory Keys

PoE, Dual-Port Gigabit Ethernet

Wireless Headset Compatible

Stand with 2 Adjustable Angles

Enhanced Call Management

Full specification

  • HD voice: HD handset, HD speaker
  • Wideband codec: AMR-WB (optional), Opus, G.722
  • Narrowband codec: G.711(A/μ), 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

  • 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

  • Local phonebook up to 1000 entries
  • Black list
  • XML/LDAP remote phonebook
  • Smart dialling
  • Phonebook search/import/export
  • Call history: dialled/received/missed/forwarded

  • Busy Lamp Field (BLF)
  • Bridged Line Appearance(BLA)
  • Anonymous call, anonymous call rejection
  • Hot-desking, voicemail
  • Message Waiting Indicator (MWI)
  • Call park, call pickup
  • Intercom, paging, music on hold
  • Call recording
  • Flexible seating
  • Executive and assistant
  • Centralised call recording
  • Visual voicemail

  • 3″ 132×64-pixel graphical LCD with backlight
  • LED for call and message waiting indication
  • Dual-colour (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

  • 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

  • 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

  • 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

  • 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 synchronisation 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

  • Colour: 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)

  • Package content:
    • Yealink SIP-T40G IP phone
    • Handset with handset cord
    • Ethernet cable
    • Stand
    • Quick start guide
    • Power adapter (optional)
  • Qty/CTN: 5 PCS
  • W/CTN: 5.7 kg
  • W/CTN: 6.4 kg
  • Giftbox size: 246mm*223mm*120mm
  • Carton size: 620mm*233mm*258mm
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