Yealink T27G IP Telephone

With faster response on the phone’s user interface and better device performance, the SIP-T27G IP phone, as the upgraded product of T27P, is Yealink’s latest feature-rich tool unifying superior voice capabilities and increased function extension capability for business. Yealink Optima HD technology and wideband codec of Opus deliver a superb sound quality and bring you a life-like voice communications.

With an all-new USB port, the SIP-T27G boasts unparalleled functionality and extensibility with Bluetooth, Wi-Fi and USB recording features. Seamlessly migrated to GigE-based network infrastructure, SIP-T27G IP phone is also built with the Gigabit Ethernet facilitating very rapidly call handling. By using standard encryption protocols, the SIP-T27G performs highly secure remote provisioning and software upgrades.

HD Audio

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. Being a totally open, highly versatile audio codec, Opus, is designed to perform a higher HD audio quality than other wideband codecs in a high network bandwidth; However, if your current network quality is poor, Opus can provide you with a better audio quality than other narrowband codecs.

Easy Customisation and High Expansibilty

With an all-new USB port, the SIP-T27G is your ideally powerful and expandable office phone with Bluetooth, Wi-Fi and USB recording features. It has three pages of flexible buttons which can be programmed with up to 21 paperless DSS keys.

Secure Transport and Interoperability

The SIP-T27G uses SIP over Transport Layer Security (TLS/SSL), which is the latest network security technology. It’s also compatible with leading soft switch suppliers 3CX and Broadsoft Broadworks.

Efficient Installation and Provisioning

The Yealink SIP-T27G supports efficient provisioning and effortless mass deployment with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism to help you realize the Zero Touch Provisioning without any complex manual settings, which makes it simple to deploy, easy to maintain and upgrade.

Features

• Yealink Optima HD Voice
• 3.66" 240x120-Pixel Graphical LCD with Backlight
• Gigabit
• USB 2.0
• Opus* Codec Support
• Up to 6 SIP Accounts
• Paper Label Free Design
• PoE Support
• Headset, EHS Support
• Supports Expansion Modules

 Phone Features

• One Touch Speed Dial, Redial
• Call Forward, Call Waiting
• Call Transfer, Call Hold
• 6 VoIP Accounts
• 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

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

Specification

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

Display and Indicator

• 3.66" 240x120-Pixel Graphical LCD with Backlight
• LED for Call and Message Waiting Indication
• Dual-Colour (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

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