Grandstream DP725 is a DECT HD handset supporting up to 20 SIP lines, with 400m outdoor range (via DP755), 50-hour talk time, secure DECT encryption, and advanced VoIP features for professional mobility.
Grandstream UCM6308 IPPBX Support up to 1500 Users and 200 Concurrent calls
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.
* Using a Cat5e/6 cable to extend the HD signal with audio up to 395ft(120m)
* Support IR extender function and allows IR remote control of source devices from remote viewing location by sending IR commands received in the vicinity of the display back to the source devicesack to the Source devices
* Support HDMI 1.3, HDCP1.1 & 1.2 protocol compliant and following TCP/IP standard
* Support the point-to-point mode, one point-to-many mode and cascade connection mode through an unmanaged, dedicated Gigabit Ethernet network switch.
* It is widely used(such as DVD, PS3, STB) and support full HD up to 1080P
Cisco WS-C2960+24PC-S Catalyst 2960 with 24Ports 370W POE Switch, 2 x SFP LAN Lite 
