Grandstream UCM6300 Series IP PBX

The Grandstream UCM6300 Series IP PBX delivers a powerful, scalable unified communications solution for businesses of all sizes. Supporting up to 3000 users and 450 concurrent calls, it offers enterprise‑grade voice, video, and collaboration features with minimal setup. With built‑in conferencing, full‑band Opus audio, NAT firewall traversal, PoE+, and seamless integration with GDMS, CRM, PMS, SIP endpoints, and the Wave app, it ensures secure, reliable, and flexible communication across distributed teams.