Grandstream UCM6302 | IP PBX
The Grandstream UCM6302A is an IP PBX designed for audio-focused unified communications, offering a powerful and scalable platform for businesses. It supports up to 500 users and 75 concurrent calls, with an integrated conference bridge accommodating up to 5 meeting rooms and 75 parties, according to IP Phone Warehouse. The UCM6302A includes features like built-in instant messaging, voice conferencing, and the free Wave app for communication across various devices.