Grandstream IP PBX

Grandstream IP PBX Systems

Grandstream UCM IP PBXs offer unified communication—combining voice, video, data, mobility, and conferencing in one robust platform
The UCM6300 Series supports up to 3,000 users and 450 concurrent calls, with built-in conferencing, web meetings, and Wave app compatibility across devices
The UCM6300 Audio Series is optimized for audio communication, instantly integrating IM, voice meetings, and web conferencing for up to 1,500 users.
The UCM6200 Series caters to SMBs, supporting 500–800 users and 50–100 concurrent calls, with features like FXO/PSTN integration, IVR, call queues, call recording, and CDR
For larger deployments, the UCM6510 delivers enterprise functionality, accommodating up to 2,000 users, multiple trunk interfaces, and high-capacity call handling.
Common across all models: no licensing fees, zero per-feature costs, easy setup, and on-premise control with powerful security (SRTP, TLS, secure boot).
They also support remote work with UCM RemoteConnect and the Wave app, alongside centralized management via GDMS for multi-site scalability.
Based on Asterisk 16, Grandstream UCMs combine open-source flexibility with a user-friendly interface, making them a top choice for modern unified communications.