Grandstream UCM6204 IPPBX support up to 500 users and 45 concurrent calls

Grandstream UCM6204 IPPBX:

Brand: Grandstream
Product code: UCM6204
UCM6204 support up to 500 users and 45 concurrent calls.
Auto Discovery and Zero Configuration of Grandstream SIP endpoints
Integrated 4 PSTN trunk FXO ports, 2 analog telephone FXS ports with lifeline capability and up to 50 SIP trunk accounts
Gigabit network ports with Integrates PoE, USB, SD card
Supports up to a 5-level IVR (Interactive Voice Response)
Built-in call recordings server; recordings accessible via web user interface
Built-in Call Detail Records (CDR) for tracking phone usage by line, date, etc.
Supports multi-language auto-attendant and call queue to efficiently handle incoming calls
Strongest possible security protection using SRTP, TLS and HTTPS encyrption
Supports any SIP video endpoint that uses the H.264, H.263 or H.263+ codecs.

Grandstream UCM6204 Datasheet- PDF