Yealink SIP-T23P 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, delivery a powerful, security and consistent communication experience for small and large offices environment.

• Yealink HD Voice
• 132x64-pixel graphical LCD
• Two-port 10/100 Ethernet Switch
• PoE support
• Up to 3 SIP accounts
• Supports Dual-color LEDs
• Headset support
• Wall mountable
• IPv6 support
• Paperless design
• Simple, flexible and secure provisioning options

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  Audio Features
  HD voice: HD handset, HD speaker Wideband codec: G.722 Narrowband codec: G.711(A/μ), G.723.1, 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
  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 RTCP-XR
  Directory
  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 keysFeature keys
  Interface
  2xRJ45 10/100M Ethernet ports Power over Ethernet (IEEE 802.3af), class 2 1xRJ9 (4P4C) handset port 1xRJ9 (4P4C) headset port
  Management
  Configuration: browser/phone/auto-provision Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy Auto-provision with PnP Zero-sp-touch 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 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 using MD5/MD5-sess OpenVPN, IEEE802.1X IPv6
  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