Yealink T88W SIP Phone (T88W)

The Yealink SIP-T88W is a simple-to-use smart business phone that provides an enriched HD audio calling experience for business professionals. This smart business phone enables productivity-enhancing communication with the ease of a standard phone. With the optional Yealink Bluetooth handset BTH88, users are free to move around when on a call – no more missed calls when they leave their desk. With a range of up to 10 meters (30 feet), the Yealink Bluetooth handset offers more office flexibility for users. Based on the Android 13 operating system, the SIP-T88W adopts a new user interface, which is more concise and business-oriented, greatly improving users' work efficiency.

Shield Strong, Stay Safe

Yealink T7 Series features Three Rings of Security; Core Ring ensures device integrity by preeventing tampering and unauthorised access; Shield Ring protects network connections against intrusions and attacks; and Guard Ring secures transmission by protecting signaling, media, and user data transit and at rest.

Yealink SIP-T88W Technical Specification

Audio Features

• HD Voice:
  • HD handset
  • HD speaker
• Hearing Aid Compatible (HAC) handset
• Acoustic Shield
• Smart Noise Filtering
• Wideband Codec:
  • AMR-WB (optional)
  • G.722
• Narrowband Codec:
  • AMR-NB (optional)
  • PCMU (G.711μ)
  • PCMA (G.711A)
  • G.723.1
  • G.729, G.729A, G.729B, G.729AB
  • G.726
  • iLBC
• DTMF:
  • In-band
  • Out-of-band (RFC 2833)
  • SIP INFO
• Full-duplex hands-free speakerphone with AEC
• Voice Processing:
  • VAD
  • CNG
  • AEC
  • PLC
  • AJB
  • AGC

Display and Indicator

• LCD Screen:
  • 7" 1024 × 600 capacitive adjustable touch screen
  • Vertical tilt angle adjustable: 30°
• 5-point multi-touch surface
• Screensaver and wallpaper support
• LED for call and message waiting indication
• Intuitive user interface with icons and soft keys
• Multilingual user interface
• Caller ID with name, number and photo

Phone Features

• Yealink SDK (Software Development Kit)
• 16 VoIP accounts
• One-touch speed dial, hotline, mute and DND
• Call hold, call forward, call waiting and call transfer
• Group listening
• Emergency call support
• Redial, call return and auto answer
• Direct IP call without SIP proxy
• Ring tone selection, import and delete
• Manual or automatic date and time setting
• Dial plan, XML Browser and Action URL/URI
• RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
• 10-party audio conferencing
  • Up to 3-party video conference
  • Up to 7-party audio conference
• Data import/export via Bluetooth, email and other methods
• DoorPhone Features:
  • Preview
  • One-button Open
• Monitoring support
• USB/Bluetooth Connectivity:
  • Compatible with Yealink CP series speakerphones
  • Compatible with Yealink UH series headsets
  • Compatible with Yealink BT series headsets
  • Basic functions: answer/end call, mute
  • Enhanced functions: audio optimisation, redial, call hold, volume synchronisation, multiple call control
• Analog PSTN calls via CPN10
• Wireless Access Point (AP Mode)

Corded-Cordless Phone Features (via DECT Dongle DD10K)

• Supports up to 4 DECT cordless handsets
• Supports up to 4 concurrent calls
• Compatible with:
  • Yealink W73H
  • Yealink W53H
  • Yealink W56H
  • Yealink W59R
  • DDPhone
  • CP930W
• Slave handset support for Master Deskset

Android-Bundled Applications

• File Manager
• Email
• Calendar
• Camera
• Gallery
• Recorder
• Calculator
• Browser
• Message
• Third-party Android application support

IP-PBX Features

• Busy Lamp Field (BLF)
• Bridged Line Appearance (BLA)
• Anonymous call and anonymous call rejection
• Remote office, hot desking, intercom and paging
• Call completion
• Message Waiting Indicator (MWI)
• Voice mail, call park and call pickup
• Music on hold
• Call recording

Function Keys

• 84 one-touch DSS keys
• 7 feature keys:
  • Hold
  • Transfer
  • Message
  • Headset
  • Mute
  • Redial
  • Speakerphone
• Volume control keys
• Illuminated mute, headset and hands-free speakerphone key

Interface

• Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), Class 3
• Built-in Dual-Band Wi-Fi:
  • IEEE 802.11a/b/g/n/ac/ax
  • 2.4GHz and 5GHz frequency bands
• Built-in Bluetooth 5.0:
  • Bluetooth handset BTH88 support
  • Bluetooth headset support
  • Mobile device pairing
  • Simultaneous connection of one headset and one mobile phone
• 2 × USB 2.0 Ports (Type-A / Type-C):
  • USB flash drive
  • USB headset
  • Colour-screen expansion modules (USB Type-A)
  • Wireless Headset Adapter EHS40
• 1 × Security lock port
• 1 × RJ-9 (4P4C) handset port
• 1 × RJ-9 (4P4C) headset port
• Supports up to 3 colour-screen expansion modules

Other Physical Characteristics

• Operating Humidity: 5% – 90%
• Operating Temperature: -10°C to 45°C (14°F to 113°F)
• Storage Temperature: -30°C to 70°C
• Power Adapter (Optional):
  • AC 100–240V input
  • DC 12V / 1.25A output
• USB Output Current: 5V / 500mA
• Power Consumption (PoE): 2.79W – 5.37W
• Power Consumption (PSU): 2.06W – 4.45W
• Dimensions (W × D × H × T): 263.7 × 188.8 × 239.9 × 38.9 mm

Management

• Configuration Modes:
  • Web interface
  • Phone interface
  • Automatic provisioning
• Automatic update via FTP, TFTP, HTTP and HTTPS
• Automatic deployment in PnP mode
• BroadSoft device management
• Zero-Touch Provisioning and TR-069
• Keyboard lock for privacy protection
• Factory reset and reboot support
• Packet capture and system log export
• Supports Yealink Device Management Platform (YDMP/YMCS)

Network and Security

• IPv4 / IPv6
• SIP v1 (RFC2543), SIP v2 (RFC3261)
• Redundant server support
• STUN intranet penetration support
• SIP connection modes:
  • Proxy mode
  • Point-to-point direct connection mode
• Static and dynamic IP allocation
• SNTP automatic date and time synchronisation
• UDP / TCP / DNS-SRV (RFC3263)
• QoS:
  • 802.1p/Q tagging (VLAN)
  • Layer 3 ToS DSCP
• SRTP support
• TLS 1.3 support
• HTTPS Certificate Management
• Configuration file encryption (AES256)
• Authentication:
  • MD5
  • SHA1
  • SHA224
  • SHA256
  • SHA384
  • SHA512
• OpenVPN, IEEE 802.1X and L2TP VPN support
• LLDP / CDP / DHCP VLAN
• ICE support
• WPA2 / WPA3
• Secure Boot
• GARP (Generic Attribute Registration Protocol)

Package Features

• Package Contents:
  • Yealink SIP-T88W IP Phone
  • Handset with handset cord
  • BTH88 Bluetooth handset (optional)
  • 2m CAT5E UTP Ethernet cable
  • Stand
  • Quick Start Guide
  • Power adapter (optional)
• Quantity per Carton: 3 PCS
• Net Weight per Carton: 5.288 kg
• Gross Weight per Carton: 4.788 kg
• Gift Box Dimensions: 290 × 288 × 104 mm
• Carton Dimensions: 324 × 275 × 305 mm

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