Twenty Simultaneous Calls，IP54，HD Audio ，TLS&SRTP Security Encryption，Backup System，Centralized Deployment，Quick Charge，Vibration Alarm，OTA Upgrade，Long Standby Time

•Easy Customization and High Expansibility •HD Audio •Wireless Transmission •Efficient Installation and Provisioning •Secure Transport and Interoperability

• High-performance SIP cordless phone system • 1.8" 128 x 160 TFT color screen with intuitive user interface • Ruggedized DECT handset with IP54 protection rating • Up to 20 simultaneous calls • Up to 10 DECT cordless handsets • Up to 10 SIP accounts • Noise Reduction System • FNR (Flexible Noise Reduction)/Noise Cancellation • Up to 40-hour talking time • Up to 575-hour standby time • Quick charging: 10-minute charging time for 2-hour talking time • TLS and SRTP security encryption • Vibration alarm guarantees you do not miss any call, even in noisy situations • Wall mountable charger • Maximum DECT radio coverage: 50 meters indoors, 300 meters outdoors • Energy-saving ECO features • DECT technology: Yealink DECT technology focuses on high-quality Audio VoIP (wideband) and bit-rate data applications. However, we are incompatible with third-party DECT devices (base station, handset, etc.).

• 2.8” 320x240-pixel color LCD with backlight • Dual USB ports • Dual firmware images • Built-in Bluetooth 4.2 • Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/g/ n/ac) • T4U Auto-P template unified • T4U firmware unified • Up to 12 SIP accounts • PoE support • USB headset and EHS support • Supports color-screen expansion modules • Stand with 2 adjustable angles • Wall mountable • Handset with hall switch

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2.8” 320x240-pixel color LCD with backlight

Mi

LED for call and message waiting indication

8 line keys with LED

Dual-port Gigabit Ethernet • Power over Ethernet (IEEE 802.3af), Class 3 • 2 x USB port (2.0 compliant) • 1 x RJ9 (4P4C) handset port • 1 x RJ9 (4P4C) headset port

Stand with 2 adjustable angles

HD handset, HD speaker

Full-duplex hands-free speakerphone with AEC

AMR-WB (optional), G.722

AMR-NB (optional), PCMU

Hearing aid compatible (HAC) handset

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2 x USB port (2.0 compliant)

Ethernet Cable (2m CAT5E UTP Cable)

1 x RJ9 (4P4C) handset port

1 x RJ9 (4P4C) headset port

2.0W - 5.2W

Bluetooth headsets USB headset

USB/Bluetooth connectivity

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Up to 12 SIP accounts

5-way conference call