VOIP GatewaysPBX

Grandstream Audio Series UCM6304A IP PBX Supporting 4x FXO, 4x FXS Ports, 1000 Users, Supports Full-Band Opus Voice Codec

Grandstream GCC6000 Built-in IPPBX (10 Users, 4 Concurrent Calls) + enterprise-grade firewall + VPN Router + 2 x 2.5 Gb, 5 x GigE Network Switch

Grandstream UCM6301, IP PBX, 1 x FXO Port, 1 x FXS Port, Supports Up To 500 Extensions, 75 Concurrent Calls, 1 x USB, NAT Router

Grandstream UCM6302 IP PBX Supporting 2x FXO, 2x FXS Ports, 1000 Users, H.264/H.263/ H.263+/H.265/VP8 Video Codec