UCM6510

Here’s an in‑depth overview of the Grandstream UCM6510 IP PBX:

   Core Features & Specs

• User capacity: Supports up to 2,000 SIP endpoints and 200 SIP trunks, with up to 200 concurrent calls and 64 participants in conference bridges 

• Hardware: Powered by a 1 GHz quad-core Cortex‑A9 CPU, 1 GB DDR3 RAM, and 32 GB flash storage 

• Connectivity Ports:

  • 1× T1/E1/J1 interface

  • 2× FXO (PSTN trunk)

  • 2× FXS (analog phone/fax with lifeline support)

  • 2× Gigabit Ethernet (with PoE+); optional 3rd port for High‑Availability configurations 

  • USB & SD card slots; built‑in NAT router with advanced QoS 

   Security & Resilience

• Supports SRTP, TLS, HTTPS, SSH, with hardware acceleration for encryption

• Protection features include Fail2ban, IP blacklisting/whitelisting, alerting events and secure credential management 

• High‑Availability support via hot standby controller (e.g., HA100 accessory) minimizes downtime