Grandstream PABX UCM 6510

Supports up to 2000 SIP endpoint registrations, up to 200 concurrent calls and up to 64 conference attendees
1GHz quad-core Cortex A9 processor
1GB DDR3 Ram, 32GB Flash
1 Integrated T1/E1/J1 interface, 2PSTN trunk FXO ports, 2 analog telephone/Fax FXS ports with lifeline capability
Gigabit network ports with Integrates PoE, USB, SD card, integrated NAT router
Comprehensive security protection using SRTP, TLS and HTTPS with hardware encryption accelerator
Quickly setup and provision Grandstream endpoints using the Auto-Discovery and Zero Config feature within the product’s web user interface