Grandstream UCM6510 enterprise IP-PBX

• 2x PSTN FXO Ports and USB Port
• UCM6510 support  about 2000 endpoint SIP registrations, 200 concurrent calls and about 64 conference attendees
• fifty SIP Trunk Accounts
• Realize the highest possible security through SRTP, TLS and HTTPS with hardware encryption accelerators
• redundant power supply, hot standby cluster support and high availability to minimize system downtime (to be determined)
• 1GHz quad-core Cortex A9 processor with enough memory size of  1GB DDR3 Ram, 32GB Flash and SD Card port for local recording.