Overview of Grandstream GCC6021
The Grandstream GCC6021 is a UC + networking convergence device that merges a VPN router, a next-generation firewall, an IP PBX and a 28-port network switch into one platform. It provides 4 × 10G SFP+, 8 × 2.5G and 16 × Gigabit ports (WAN/LAN configurable, up to 5 WAN), 24 PoE out ports with a 370 W budget including 8 IEEE 802.3bt ports, 10 Gbps routing, 9 Gbps NGFW throughput (DPI+IPS), dedicated HA ports and RPS input. The built-in PBX supports 50 users and 16 concurrent calls by default, with upgrades available. It suits larger offices, hotels, hospitals, schools and multi-floor sites.
Technical Specifications – Grandstream GCC6021
Hardware
| CPU | Quad-core CORTEX-A73, 1.8 GHz |
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| Network Ports | 4 × 10 Gigabit SFP+ ports, 8 × 2.5 Gigabit and 16 × Gigabit Ethernet ports; all ports are WAN/LAN configurable (up to 5 WAN ports) |
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| Auxiliary Ports | 1 × CONSOLE, 1 × USB3.0, 2 × HA, 1 × MGMT |
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| Memory | 4 GB DDR4, 256 MB DDR3; 4 MB NOR + 32 GB eMMC; 8 MB NOR + 128 MB NAND |
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| External Storage | Optional, M.2 SSD |
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| LEDs | 24 × LEDs (Green/Yellow) for Ethernet Ports / PoE Out, 4 × LEDs for SFP+, 2 × LEDs for HA, 1 × LED (R/G/B) for Device Tracking & Status, 1 × LED for Main Power, 1 × LED for Redundant Power System |
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Performance
| Router | 10 Gbps |
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| IPsec VPN Throughput | 1.3 Gbps |
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| NAT Sessions | 1M |
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| NGFW Throughput (DPI+IPS) | 9 Gbps |
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| PBX | 50 users and 16 concurrent calls by default; upgrades available for purchase |
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Networking & Security
| Connection Type | DHCP, Static IP, PPPoE |
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| Network Protocols | IPv4, IPv6, IEEE 802.1q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab |
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| QoS | VLAN, TOS; supports multiple traffic classes, filtering by port, IP address, DSCP, and policing; App QoS: application/protocol monitoring and traffic statistics; VoIP Prioritization |
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| Firewall | DDNS, Port Forwarding, DMZ, UPnP, DoS & Spoofing defense, traffic rules, NAT; DPI, Anti-Virus, IPS/IDS, SSL Proxy; Content Control: DNS filtering, Web URL / Category / Keyword filtering, application identification and control; Email Security, Geo-IP filtering |
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| IPsec VPN | Client-to-Site / Site-to-Site; Encryption: 3DES, AES; Authentication: MD5, SHA-1, SHA2-256; Key Exchange: Main/Aggressive Mode, Pre-shared Key, DH Groups 1/2/5/14; Protocols: ESP; NAT Traversal |
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| PPTP / L2TP VPN | PPTP VPN Server / Client; PPTP Encryption: MPPE 40-bit, 128-bit; PPTP/L2TP Authentication: MS-CHAPv1/2; L2TP |
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| OpenVPN® / WireGuard® | OpenVPN® Server / Client; Encryption: AES, DES; Authentication: MD5, SHA-1, SHA2-256, SHA2-384, SHA2-512; Certificate: RSA; WireGuard® |
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Management
| Network Management | Grandstream Device Management System (GDMS), GWN App, Local Web GUI, SSH, SNMP (v1/v2c/v3) and CLI |
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| Max AP/Clients | Up to 300 GWN APs; Up to 1000 Clients |
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Power & Environment
| Power | Universal power adapter included: Input 100–240 VAC, 50–60 Hz; Output: 54 VDC, 7.8 A (420 W) |
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| PoE Output | 8 × PoE out ports support IEEE 802.3af/at/bt; 16 × PoE out ports support IEEE 802.3af/at; Total PoE Power Budget: 370 W |
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| RPS Input | 54 VDC / 7.8 A |
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| Operating Temperature | 0 °C to 45 °C (32 °F to 113 °F) |
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| Storage Temperature | -10 °C to 60 °C (14 °F to 140 °F) |
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| Humidity | 5%–95%, non-condensing |
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Physical
| Mounting | Desktop, Wall Mount |
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| Material | Metal |
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| Unit Dimension | 440 mm × 301.5 mm × 44 mm (17.32″ × 11.87″ × 1.73″) |
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| Unit Weight | 4.2 kg (9.26 lb) |
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| Package Dimension | 557 mm × 413 mm × 138 mm (21.93″ × 16.26″ × 5.43″) |
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| Package Weight | 5.6 kg (12.35 lb) |
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| Package Content | GCC6021, Universal Power Supply, Rack mount kit, Quick Installation Guide |
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| Compliance | FCC, CE, RCM, IC |
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Source: Grandstream official website and datasheet. Specifications are subject to change by the manufacturer.