128×384 backlit LCD display
20 programmable dual-color buttons per module, 2 pages per module (40 contacts total)
BLF/speed dial
Daisy-chain up to 4 modules for up to 160 contacts/extensions
BLA (bridged line appearance)/SC
16 lines with up to 16 SIP accounts
Built-in mega-pixel camera for video calling with privacy shutter
Runs on Android 7.0 operating system
Built-in Bluetooth for syncing with mobile devices and connecting
The Grandstream GWN7664ELR is a long-range, outdoor Wi-Fi 6 access point with up to 6 Gbps throughput, 300m coverage, and support for 512 clients—perfect for enterprise-grade wireless networking.
 20 SIP lines, 3-way conference, hotspot
 5″ high-resolution color display
 HD audio on speakerphone and handset
 Up to 60 DSS keys entries available (12 physical)
 Built-in Bluetooth for connecting Bluetooth headset
 Wi-Fi connectivity (via Wi-Fi dongle)
 Video codec H.264 support for receiving video calls
 Stand with 2 adjustable angles of 40 and 50 degrees
 Support EHS headset
 Dual Gigabit ports, integrated PoE
 Compatible with major platforms:3CX, Avaya, Asterisk,
Broadsoft, Metaswitch, Elastix etc.
Connects and constantly monitors two UCM6510 together for high availability
Smart failover solution that automatically switches to a hot-standby secondary UCM6510 if the primary one fails
12V/3A DC Power Supply for Access Control 
Mikrotik Hap ac Lite Dual-Concurrent 2.4/5GHz AP, 802.11ac, Five Lan ports, POE-out, USB for 3G/4G 
