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Yealink Network Technology Co., Ltd > 
Item#: 13N-0005-00085CVF

Yealink SIP-T23G, 3 Lines HD Professional VoIP Phone, POE, No Power Supply

Ships from Canada.

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Yealink Enterprise HD IP Phone SIP-T23G

Yealink SIP-T23G features intuitive user interface and enhanced functionality which make it easy for people to interact and maximize productivity. Yealink HD technology enables rich, clear, life-like voice communications, outsourced management options, flexible deployment and third-party communications applications. As a cost effective IP solution, it helps users to streamline business processes, deliver a powerful, security and consistent communication experience for small and large offices environment.


  • Yealink HD Voice
  • Dual-port Gigabit Ethernet
  • PoE support
  • 132x64-pixel graphical LCD
  • Up to 3 SIP accounts
  • Supports Dual-color LEDs
  • Headset support
  • Wall mountable
  • IPv6 support
  • Paperless design
  • Simple, flexible and secure provisioning options


Audio Features

  • HD voice: HD handset, HD speaker
  • Wideband codec: 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

Phone Features

  • 3 SIP accounts
  • Call hold, mute, DND
  • One-touch speed dial, hotline
  • Call forward, call waiting, call transfer
  • Group listening, SMS
  • Redial, call return, auto answer
  • Local 3-way conferencing
  • Direct IP call without SIP proxy
  • Ring tone selection/import/delete
  • Set date time manually or automatically
  • Dial plan, off hook hot line
  • XML Browser, Action URL/URI
  • Integrated Screenshots


  • Local phonebook up to 1000 entries
  • Black list
  • XML/LDAP remote phonebook
  • Intelligent search method
  • 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, emergency call
  • Message Waiting Indicator (MWI)
  • Voice mail, call park, call pickup
  • Intercom, paging, music on hold
  • Call completion, call recording

Display and Indicator

  • 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
  • National language selection
  • Caller ID with name, number

Feature keys

  • 3 line keys with LED
  • 5 features keys: message, headset, redial, tran,hands-free speakerphone
  • 6 navigation keys
  • Volume control keys


  • Dual-port Gigabit Ethernet
  • Power over Ethernet (IEEE 802.3af), class 2
  • 1xRJ9 (4P4C) handset port
  • 1xRJ9 (4P4C) headset port

Other Physical Features

  • Wall mountable
  • External universal AC adapter (optional):AC 100~240V input and DC 5V/600mA output
  • Power consumption (PSU): 0.72-1.56W
  • Power consumption (PoE): 0.96-1.98W
  • Dimension(W*D*H*T):209mm*188mm*150mm*41mm
  • Operating humidity: 10~95%
  • Operating temperature: -10~50°C


  • 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)
  • NAT transverse: 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
  • 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 using MD5/MD5-sess
  • OpenVPN, IEEE802.1X
  • IPv6




Warranty, Returns, And Additional Information
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
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