The latest Yealink SIP-T77U (1301011) 12-Line 7-inch Color Touch Screen Ultra Business Phone. 

Features:

• 7" 800 *480-pixel color touch screen with backlight
• 12 Line Touch Screen Keys with LED keys (up to 84 DSS Keys, 7 pages)
• Up to 16 SIP accounts
• 7 feature keys: hold, transfer, message, headset, mute, redial, speakerphone
• Volume control keys
• Illuminated mute/headset/hands-free speakerphone key
• PoE support
• Linux 6.1 version
• TEE hardware encryption solution
• Dual system function
• T7X Auto-P template unified
• Unified firmware for T7X series (T73U, T73W, T74U, T74W, T77W), T85W, and T87W
• Supports Wi+Fi via WF50
• Bluetooth via 8T41
• Headset, EHS support

• Supports color-screen expansion modules (EXP55)
• PCE support
• Stand with 2 adjustable angles
• Wall mountable
• Handset with hall switch
• Power Supply sold separately (PS5V2000US)
• 3-Watt Speaker
• Acoustic Shield
• Optima HD Voice
• Dual Port GB Ethernet
• Dual USB 2.0 ports (USB-A / USB-C)
• Dual firmware
• USB Recording

Weight: 3.15

Shipping Dimensions: 12x11x5”

Optional Accessories:

PS5V2000US   330000012027   / PSU for Yealink 5-v 2-amp

EXP55                  1300016               /  26-Button Expansion Module