Grandstream GCC6021 Built-in IPPBX (50 Users, 16 Concurrent Calls) + enterprise-grade firewall + VPN Router + 8 x 2.5 Gb, 4 x 10 Gig SFP+, 16 x GigE Network Switch extension module The UCM6300 series supports up

The UCM6300 series supports up to 3000 users and includes a built-in web meetings and video conferencing solution that allows employees to connect from the desktop

advanced echo cancellation & excellent doubletalk performance

integrated PoE (GRP2601P)

Power adapter is not provided

Advanced QoS to ensure real-time performance of low-latency applications Supports application

Grandstream GCC6021 Built-in IPPBX (50 Users, 16 Concurrent Calls) + enterprise-grade firewall + VPN Router + 8 x 2.5 Gb, 4 x 10 Gig SFP+, 16 x GigE Network Switch extension module The UCM6300 series supports upBuilt in IP PBX provides voice & video communications with advanced collaboration Built in enterprise grade firewall provides anti virus, layer 3 7 IDS IPS, DPI, SSL detection, and more Built in VPN router supports 6. 5Gbps or 10Gbps to allow easy remote access to private networks Built in network switch with 4 or 16 Gigabit ports, 5 or 24 PoE out ports, both have 2. 5 Gigabit and 10 Gigabit SFP+ ports Enhanced reliability with support for hot standby