Enterprise HD IP Phone

The SIP-T27P is a feature-rich sip phone for business. It has been designed by pursuing ease of use in even the tiniest details.Delivering a superb sound quality as well as rich visual experience. The T27P also offers a wide range of functions, like SCA, BLF List, call forward, call transfer, 3-way conference,and up to support various features.Using standard encryption protocols to perform highly secure remote provisioning and software upgrades.



 Yealink Optima HD voice
۳٫۶۶″ ۲۴۰×۱۲۰-pixel graphical
LCD with backlight
Up to 6 SIP accounts
Paper label free design
PoE supportHeadset, EHS supportSupports expansion modules

Integrated stand with 2
adjustable angles
Wall mountable (optional)
Simple, flexible and secure
provisioning options




Audio Features
HD voice: HD handset, HD speaker
Wideband codec: G.722
Narrowband codec: G.711(A/μ), G.729AB,
G.726, iLBC
DTMF: In-band, Out-of-band(RFC 2833) and SIP
Full-duplex hands-free speakerphone with AECVAD, CNG, AEC, PLC, AJB, AGC 

Phone Features
۶ VoIP accounts
One-touch speed dial, redial
Call forward, call waiting
Call transfer, call hold
Call return, group listening
Mute, auto answer, DND
۳-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


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
Message Waiting Indicator (MWI)
Voice mail
Call park, call pickup
Intercom, paging,
Music on hold
Call recording


Display and Indicator
۳٫۶۶″ ۲۴۰×۱۲۰-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
۸ line keys with LED
۸ line keys can be programmed up to 21
various features (3-page view)
۸ features keys: message, headset, conference, mute,
hold, transfer, redial, hands-free speakerphone
۴ context-sensitive “soft” keys
۶ navigation keys
۲ volume control keys
Illuminated message key
Illuminated headset key


۱xRJ9 (4P4C) handset port
۱xRJ9 (4P4C) headset port
۱XRJ12 (6P6C) EHS port

۱XRJ12 (6P6C) EXT port:
Supports up to 6 Expansion Modules
Power over Ethernet (IEEE 802.3af), Class 2


Other Physical Features

Stand with 2 adjustable angles
Wall mountable (optional)
External universal AC adapter (optional):
AC 100~240V input and DC 5V/1.2A output
Power consumption (PSU): 1.17~۳٫۳۲W
Power consumption (PoE): 1.60~۵٫۹۴W
۲۶۵mm x 210mm x 170.5mm x 53.5mm
Operating humidity: 10-95%
Operating temperature: -10~50°C


Package Features
Qty/CTN: 5 PCS
Giftbox size: 300mm x 225mm x 118mm
Carton Meas: 610mm x 310mm x 238mm


Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS
for mass deploy
Auto-provision with PnP
Zero-sp-touch TR-069
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
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS
SRTP for voice
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for configuration file
Digest authentication using MD5/MD5-sess
OpenVPN, IEEE802.1X




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