Grandstream Built-in IPPBX (10 Users, 4 Concurrent Calls) + enterprise-grade firewall + VPN Router + 2 x 2.5 Gb, 10 x GigE Network Switch GS-GCC6011 extension module and Sennheiser headsets

and Sennheiser headsets

and SIP endpoints

Full-band Opus voice codec

10 for even more reliable data storage

4GHz & 5GHz 802

Grandstream Built-in IPPBX (10 Users, 4 Concurrent Calls) + enterprise-grade firewall + VPN Router + 2 x 2.5 Gb, 10 x GigE Network Switch GS-GCC6011 extension module and Sennheiser headsetsBuilt in IP PBX provides voice & video communications with advanced collaboration features (PBX Upgrade options available) Built in firewall provides anti virus, layer 3 7 IDS IPS, DPI, SSL detection, and more Built in VPN router supports 2. 5Gbps or 3Gbps to allow easy remote access Built in network switch with 5 or 10 Gigabit ports, 4x PoE out ports, and 2x 2. 5 SFP ports (GCC6010 GCC6011) Built in dual band Wi Fi 6 AP with 2x2 MIMO technology