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
The Grandstream CloudUCM Pro is a powerful cloud PBX solution that supports up to 100 extensions and 32 calls. It includes built-in voice, video, chat, and meeting tools—no hosting fees required. With strong security, CRM and Teams integration, and remote access via the Wave app, it’s perfect for growing businesses, hotels, and retail environments.
The Grandstream GVC3220 Video Conferencing System delivers 4K Ultra-HD visuals, Android 9.0 OS, 12x PTZ camera, and full-room audio—ideal for boardrooms, classrooms, and large conference halls.
The Grandstream UCM6304 is an enterprise-grade IP PBX that supports up to 2,000 users and 300 concurrent calls, offering a unified communication platform with built-in voice, video, meetings, chat, mobility, and advanced security—ideal for scalable business collaboration.
Video Input and Transmission
* Connectable to Turbo HD/HDCVI/AHD/CVBS signal input
* Up to 2-ch 1080p IP cameras input
* Long distance transmission over UTP and coaxial cable: max. 1200m for 720p Turbo HD signal
Compression and Recording
* One-key enable H.264+ compression to improve encoding efficiency by up to 50% and reduce data storage costs
* Supports 1080p lite of all channels and when enabled, the image effect is similar with 1080p
Hikvision DS-7604NI-K1/W 4Ch 1080P Wireless NVR 
