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
Grandstream CloudUCM Startup is a cloud-based PBX system designed for freelancers and small teams. It supports up to 10 extensions and 4 calls, includes built-in conferencing, live chat, and CRM integration, and comes with a 30-day free trial—no hosting fees required.
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
Gigabit POE Splitter 5V/9V/12V POE Output 
12V/3A DC Power Supply for Access Control 
4 Channel Video Distributor 
