UCM6301 IP PBX supports up to 500 users, 75 concurrent calls and 50 SIP trunks for voice and video.

Integrated IP PBX for voice, video and unified communications in small and medium businesses. Supports up to 500 users, 75 concurrent calls and 50 SIP trunks with Asterisk 16. One FXO and one FXS port, three Gigabit ports with PoE+, NAT and USB/SD. Supports audio conferences up to 75 participants, Wave video, recording, messaging, GDMS and RemoteConnect.