Yealink Optima HD Voice Enterprise HD IP Phone

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 expansibility 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.

Features:

• 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 Customization and High Expansibility: 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.

• 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.

• 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.

Specifications:

• 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.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

• 3.66″ 240×120-pixel graphical LCD with backlight

• 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 RJ12 (6P6C) EHS port

• 1 x RJ12 (6P6C) EXT port: Supports up to 6 Expansion Modules

• 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

• Operating temperature: -10~50°C (+14~122°F)

• 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

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