جراندستريم سنترال يدعم لحد 500 تحويلة SIP و4 خطوط ارضية FXO وتحويلتين Grandstream ucm6204 Support up to 500 users, 4 FXO (PSTN lines), 2 FXS port analog, analog

Grandstream UCM6204 Features

UCM6202 and UCM6204 support up to 500 users and 50/75 concurrent calls, UCM6208 supports up to 800 users and 100 concurrent calls

Auto Discovery and Zero Configuration of Grandstream SIP endpoints

Integrated 2/4/8 PSTN trunk FXO ports, 2 analog telephone FXS ports with lifeline capability and up to 200 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 encryption

Supports any SIP video endpoint that uses the H.264, H.263 or H.263+ codecs