Grandstream UCM6300A – Audio IP PBX with 250 Users & 50 Concurrent Calls

The Grandstream UCM6300A IP PBX is a compact and cost-effective unified communications solution designed for small businesses that prioritize voice communication and reliability. As part of the Audio Series, it focuses on delivering high-quality voice, instant messaging, and collaboration features without the complexity of video conferencing systems.

Supporting up to 250 users and 50 concurrent calls, the Grandstream UCM6300A IP PBX provides a scalable platform for startups and small offices. It is ideal for organizations looking to transition from traditional telephony to modern VoIP systems while maintaining simplicity and affordability.

One of the key advantages of the UCM6300A is its high-availability support, featuring a dedicated Hot Standby port that allows pairing with another unit for redundancy. This ensures continuous operation and minimizes downtime in case of hardware failure, making it a reliable solution for critical communication environments.

The system includes a built-in audio conferencing platform, supporting up to 3 meeting rooms and 50 participants, along with Instant Messaging (IM) capabilities to enhance internal collaboration. Integration with the Grandstream Wave app allows employees to connect remotely using smartphones, tablets, or web browsers, turning any device into a business extension.

Equipped with three Gigabit Ethernet ports with PoE+ support and an integrated NAT router, the UCM6300A ensures flexible deployment and stable network performance. It also supports UCM RemoteConnect, enabling secure remote access and NAT traversal for off-site users.

Advanced telephony features such as auto-attendant (IVR), call queues, voicemail-to-email, call recording, call forwarding, Do Not Disturb (DND), call park and pickup, and BLF provide a professional communication system. Security is enterprise-grade, with secure boot, unique certificates, and TLS/SRTP/HTTPS encryption protecting all communications.

The Grandstream UCM6300A IP PBX includes USB and SD card support for storage and logging, along with a touchscreen LCD interface for easy management. With no licensing fees, it offers a highly cost-effective and scalable voice communication solution.