Brži odziv korisničkog interfejsa i uopšte bolje performanse u odnosu na prethodni model - SIP-T27P, čine novi Yealink SIP-T27G izvrsnim komunikacijskim alatom za sve poslovne korisnike. Za kvalitet zvuka brine Yealink Optima HD tehnologija, te dodatak novog Opus codeca. Novost u odnosu na prethodnika je i dodatak Gigabit Ethernet interfejsa, kao i USB priključka, čime postaje moguće telefon dodatno proširiti spajanjem Bluetooth uređaja, Wi-Fi mrežom ili snimanjem razgovora na USB memoriju. 

• 
  
• Yealink Optima HD voice
• 3.66" 240x120 ekran sa pozadinskim osvetljenjem
• Podrška za Opus codec
• USB 2.0 (uz dodatne module - spajanje na Bluetooth, Wi-Fi i snimanje razgovora)
• Do 6 SIP naloga
• Dva Gigabit Ethernet porta
• PoE
• Dizajn bez korišćenja papirnih oznaka
• Podrška za EHS i naglavne slušalice
• Podržava dodatne konzole EXP20

Phone Features

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

USB port (2.0 compliant) Bluetooth earphone through BT40, Wi-Fi through WF40, USB call recording through USB flash drive

Enhanced DSS key

Audio Features

HD voice: HD handset, HD speaker

Wideband codec: Opus*, G.722

Narrowband codec: Opus*, G.711(A/µ), 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

IP-PBX Features

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

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

Management

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

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

Feature keys

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

Interface

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

Other Physical Features

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): 1.44～3.47W

Power consumption (PoE): 1.72～7.07W

Dimension (W*D*H*T): 265mm x 210mm x 170.5mm x 53.5mm

Operating humidity: 10-95%

Operating temperature: -10~50°C

Network and Security

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 using MD5/MD5-sess

OpenVPN, IEEE802.1X

IPv6

LLDP/CDP/DHCP VLAN

ICE