HD voice: HD handset, HD speaker | Wideband codec: AMR-WB (optional), Opus*, G.722 | Narrowband codec: AMR-NB (optional), Opus*, G.711(A/µ), G.723.1, 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
6 VoIP accounts | One-touch speed dial, redial | Call forward, call waiting, call transfer, call hold | Call return, group listening | 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 | Integrated Screenshots | RTCP-XR, VQ-RTCPXR | USB port (2.0 compliant) Bluetooth earphone through BT40, Contact synchronization through BT40, Wi-Fi through WF40, USB call recording through USB flash drive | Enhanced DSS key
Display and Indicator
3.66" 240x120-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
> 8 line keys with LED | 8 line keys can be programmed up to 21 paperless DSS keys (3-page view) | 8 features keys: message, headset, conference, mute, hold, transfer, redial, hands-free speakerphone | 4 context-sensitive “soft” keys | 6 navigation keys | 2 volume control keys | Illuminated message key | Illuminated headset key
Other Physical Features
Color: Black | Stand with 2 adjustable angles | Wall mountable | External Yealink AC adapter (optional)：AC 100~240V input and DC 5V/1.2A output | Power consumption (PSU): 1.4-3.0W | Power consumption (PoE): 1.7-7.0W | Dimension (W*D*H*T): 265mm x 210mm x 170.5mm x 53.5mm | Operating humidity: 10-95% | Operating temperature: -10~50°C (+14~122°F)
With faster response on the phone’s user interface and better device performance, the SIP-T27G IP phone, as theupgraded product of T27P, is Yealink’s latest feature-rich tool unifying superior voice capabilities and increasedfunction extension capability for business. Yealink Optima HD technology and wideband codec of Opus deliver asuperb sound quality and bring you a life-like voice communications. With an all-new USB port, the SIP-T27G boastsunparalleled functionality and expansibility with Bluetooth, Wi-Fi and USB recording features. Seamlessly migrated toGigE-based network infrastructure, SIP-T27G IP phone is also built with the Gigabit Ethernet facilitating very rapidlycall handling. By using standard encryption protocols, the SIP-T27G performs highly secure remote provisioning andsoftware upgrades.