Yealink SIP-T27G edustaa uuden sukupolven yrityskäytön IP-puhelintekniikkaa, jossa puhelimelta edellytetään monipuolisia teknisiä ominaisuuksia, laajennettavuutta, käyttäjäystävällistä käyttöliittymää sekäparhaita äänentoisto-ominaisuuksia. Laite on varustettu johtavalla TI TITAN -piirisarjalla, joka tuottaa HIFI- tasoista äänenlaatua TI -äänenprosessoinnin, HD luurin, HD kaiuttimen ja HD kodekin (G.722) avulla.

Ominaisuudet:
• HD voice: HD handset, HD speaker
• Wideband codec: AMR-WB (optional), Opus*, G.722
• Narrowband codec: AMR-NB (optional), Opus*, G.711(a/u), G.723.1, G.729, 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
• 6x 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
• 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
• Busy Lamp Field (BLF)
• Bridged Line Apperance (BLA)
• Anonymous call, anonymous call rejection
• Hot-desking, voice mail
• Flexible seating
• Call park, call pickup
• Executive and Assistant
• Centralized call recording
• Visual voice mail
• 3.66″ 240×120-pixel graphical LCD with backlight
• LED for call and message waiting indication
• Dual-color (red or green) illuminated LEDs for line statusinformation
• 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
• Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), Class 3
• 1 x USB port (2.0 compliant)
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port
• 1 x RJ12 (6P6C) EHS port
• 1 x RJ12 (6P6C) EXT port:
• Supports up to 6 Expansion Modules
• Color: Black
• Stand with 2 adjustable angles
• Wall mountable
• External Yealink AC adapter (optional):
– 100…240VAC 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): 265 x 210 x 170.5 x 53.5mm
• Operating humidity: 10-95%
• Operating temperature: -10…+50C
• 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
• 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 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
• OpenVPN, IEEE802.1X
• IPv6
• LLDP/CDP/DHCP VLAN
• ICE