Yealink T55A Smart Business HD IP Phone

About the The Yealink SIP-T55A

The Yealink SIP-T55A is compatible with Skype for Business, and is ideal for desk workers and common area use. The T55A Android based phone not only features a 4.3 inch capacitive touch screen and the Skype for Business Version has the capability to be upgraded to the Microsoft Teams Version via a firmware update.

Presenting a standalone voice solution and an unparalleled audio clarity, the T55A is armed with Yealinks Optima HD Voice and Yealink Noise Proof Technology. Moreover, the SIP-T55A facilitates high quality collaboration with flexibility via its USB port for a Wi-Fi, Bluetooth and a USB Headset.

Key Features and Benefits:

Easier to be Heard and to Participate in the Call

Yealink Optima HD Voice Technology combines cutting edge hardware and software, including Yealink Noise Proof Technology that provides an excellent audio experience for more efficient and productive calls. As a speech code for real-time, packet based voice communications, SILK is designed to perform a higher HD audio quality, which provides scalability in several dimensions and is highly scalable in terms of audio bandwidth, network bit rate, and complexity. Its hearing aid compatible (HAC) Handset, helps users with hearing loss to hear the voice more clearly.

Future Proof Solutions

The T55A owns the capability to transition from Skype for Business to Teams via device firmware update, which helps customers secure their investment for the future and allows for better device planning during migration from Skype for Business to Teams.

Features

• Dual Port Gigabit Ethernet, PoE Support
• Supports YHS33, YHS33-USB Headsets
• Wi-Fi Via WF50/WF40 Wi-Fi USB Dongle
• Supports USB Headset
• Bluetooth Headset via BT40 Bluetooth Dongle
• 1 USB 2.0 Port
• Supports Boss/Admin, Common Area Phone, Hot Desking, BToE
• Supports Office 365
• Microsoft Skype Tailored User Interface
• Yealink Noise Proof Technology
• SILK Speech Codec
• Optimal HD Audio
• 4.3 Inch (480 x 272) Capacitive Touch Screen

Audio Features

• HD Voice, HD Handset, HD Speaker
• VAD, CNG, AEC, PLC, AJB, AGC
• Full Duplex Hands Free Speakerphone with AEC
• DTMF - In Band, Out of Band 9RFC 2833) and SIP Info
• Audio Codec - G.722, G.7111(A/µ), G.729A/B, G.726, G.723.1, Ilbc, SILK
• Yealink Noise Proof Technology
• Hearing Aid Compatible (HAC) Handset

Directory

• Contacts and Presence Synchronise with Client
• Show Contacts with Presence and Profile Pictures
• Support Local Contacts
• Support Global Search, Compatible with Exchange
• Intelligent Search
• Call History - Forwarded/Missed/Placed/Received

Signing into Skype for Business

• Signing in with User Credentials/PIN Authentication
• Web Sign-in
• Signing in Via Web User Interface
• Signing in Via BToE

Phone Features

• Dial Plan, Group Call Pickup
• Hot Desking
• Hotline, Private Line, Ringtones
• Calendar Support
• Common Area Phone (CAP)
• Boss/Admin Function
• E911, Branch Office Support
• SFB Conferencing (Microsoft CCCP)
• Call Forward, Call Transfer, Call Park
• Call Hold, Call Waiting, Call Merge, Mute
• Presence Status - Available/Busy/DND/be Right Back/Off Work/Away, Reset Presence Status
• Response Group
• Visual Voicemail, Message Waiting Indicator (MWI)
• Intercom, Paging, Music on Hold
• Phone Lock
• Bluetooth, Wi -Fi

Display and Indicator

• 4.3 Inch (480 x 272) Capacitive Adjustable Touch Screen
• Multilingual User Interface
• Modern teams UI
• LED for Call and Message Waiting Indication

Interface

• Dual Port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), Class 3
• 1 x USB Port (2.0 Compliant) - USB Headset, USB Call Recording Through USB Flash Drive, Bluetooth Through BT40, Wi-Fi Through WF50/WF40
• 1 x Security Lock Port
• 1 x RJ9 (4P4C) Handset Port
• 1 x RJ9 (4P4C) Headset Port

Management

• Configuration - Browser/Phone Auto Provisioning
• Yealink Redirection and Provisioning Service (RPS)
• Auto Provisioning via Activation Code
• In-band Provisioning
• In-band Configuration Management
• Provisioning Priority Management
• Systematic Diagnosis
• QoE (Monitoring Reports)
• Media Bypass
• Firewall Traversal
• Reset to Factory, Reboot
• Package Tracing, Export, System Log
• Screenshot via URL
• Phone Log Click to Upload
• View Licence Status

Network and Security

• SIP v1 (RFC2543), v2 (RFC3261)
• IPv4/IPv6
• Proxy Mode and Peer to Peer SIP Link Mode
• IP Assignment: Static/DHCP/PPPoE
• 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)
• EWS Authentication
• Auto Root Certificate Fetch
• HTTPS Certificate Manager
• Digest Authentication Using MD5/MD5-sess
• IEEE802.1X

Other Physical Features

• Optional External AC Adapter (Not Included) -& AC 100~240V Input and DC 5V/1.2A Output
• USB Output Currency - 5V 500mA
• Power Consumption (Optional PSU) - 1.4W-2.6W
• Power Consumption (PoE) - 1.5W-2.9W
• Dimensions - 223 x 206 x 127 x 36 mm (W x D x H x T)

Package Contents

• Yealink SIP-T55A IP Phone With Skype for Business Firmware
• Handset with Handset Cord
• Ethernet Cable (2m CAT5E FTP Cable)
• Stand
• Quick Start Guide