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. Audio Features: 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 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, VQ-RTCPXR , Enhanced DSS Key Feature keys 3 line keys with LED 5 features keys: message, headset, redial, tran, hands-free speakerphone 6 navigation keys Volume control keys Interface 2 x RJ45 10/100M Ethernet ports Power over Ethernet (IEEE 802.3af), class 1 1 x RJ9 (4P4C) handset port 1 x RJ9 (4P4C) headset port |