Grandstream UCM6308 IP PBX

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High-Capacity Enterprise VoIP with Grandstream UCM6308 IP PBX

Grandstream UCM6308 IP PBX – Features, Specs & Benefits

The Grandstream UCM6308 IP PBX is a robust, full-featured unified communication system engineered for large enterprises, government institutions, and call-intensive environments. Supporting up to 3000 users and 450 concurrent calls, this powerful IP PBX system delivers next-generation telephony for high-demand business operations across India and beyond.

Equipped with 8 FXO and 8 FXS ports, the Grandstream UCM6308 IP PBX offers seamless backward compatibility with analog PSTN lines and legacy phone systems. This is ideal for businesses transitioning to modern VoIP solutions while maintaining connections with traditional endpoints. The 3 Gigabit Ethernet ports provide high-speed connectivity, LAN/WAN segmentation, PoE support, and VPN capabilities to ensure secure, uninterrupted communications.

The Grandstream UCM6308 IP PBX is built on Grandstream’s powerful UC platform, combining enterprise-grade voice, video, messaging, conferencing, and mobility features into one appliance — all available out of the box with no licensing fees or subscription costs. Businesses can access features such as call routing, IVR, voicemail-to-email, call queues, call recording, SIP trunking, and multi-site peering at no extra cost.

Security is deeply embedded in the design of the Grandstream UCM6308 IP PBX. It supports TLS, SRTP, strong password enforcement, built-in firewall, and failover support, ensuring all communications are encrypted and protected from cyber threats. This makes it a secure IP PBX solution for organizations handling sensitive data or operating across multiple branches.

Designed with ease of management in mind, the Grandstream UCM6308 IP PBX offers a user-friendly web interface and supports Grandstream’s cloud provisioning tools, making deployment and monitoring efficient and scalable. It integrates easily with Grandstream’s Wave App, allowing users to access their office extension, make video calls, chat, and join conferences from any device, anywhere in the world.

The Grandstream UCM6308 IP PBX is compatible with a wide range of SIP-based endpoints including Grandstream IP phones, intercoms, door systems, and conferencing units, as well as third-party SIP devices. It offers API integrations for CRM and helpdesk platforms, and supports LDAP directories, giving IT teams full flexibility in system customization.

This IP PBX is perfect for growing businesses in cities such as Delhi, Mumbai, Bangalore, Hyderabad, Pune, Lucknow, Ahmedabad, and Kolkata. Whether deployed in enterprise IT departments, corporate headquarters, hospitals, colleges, or customer support centers, the Grandstream UCM6308 IP PBX delivers unmatched performance and scalability.

Its advanced hardware platform ensures high reliability, low latency, and long-term stability. The fanless design, solid metal chassis, and efficient thermal management allow for 24/7 operation in server racks or office environments. Lifetime firmware updates from Grandstream guarantee the system stays secure and up-to-date.

With support for analog and IP telephony, centralized management, secure communications, and scalability to handle thousands of users, the Grandstream UCM6308 IP PBX is the ultimate solution for modern enterprises. It consolidates all communication functions under a single, unified platform — reducing costs, improving efficiency, and boosting collaboration across teams.

Choose the Grandstream UCM6308 IP PBX to transform your business communication with crystal-clear voice quality, seamless connectivity, and rock-solid reliability. It’s the perfect PBX system to future-proof your enterprise’s telephony infrastructure in India and across the globe.