- Built-in IP PBX provides voice & video communications with advanced collaboration features (PBX Upgrade options available) -12 users and 4 concurrent calls by default - 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 10 Gigabit ports, 4x PoE out ports, and 2x 2.5 SFP ports - Easily configure, deploy, and manage all Grandstream endpoints from one interface - Provides advanced security protection with encrypted traffic, secure boot, unique security certificates, and more - Managed through the cloud (GDMS), mobile app, local WEB UI, SSH, and SNMP - Multiple WAN ports with load balancing and failover to maximize connection reliability