About Grandstream Audio Series UCM6302A IP PBX Supporting 2x FXO, 2x FXS Ports, 500 Users, Supports Full-Band Opus Voice Vodec

The Grandstream UCM6302A is an on-premise IP PBX built for small to medium businesses that want full control of their phone system without monthly per-seat fees. It supports up to 500 users and 75 concurrent calls, and includes 2 FXS ports for analogue phones or fax machines plus 2 FXO ports for connecting to the PSTN. You get clear HD audio, built-in conferencing, and room to grow.

Key Features

• 2x FXO and 2x FXS Ports — Connect traditional analogue phone lines as well as analogue handsets or fax machines, so you can keep the gear you already own.
• 500 Users, 75 Concurrent Calls — Plenty of capacity for a growing team, with a built-in conference bridge supporting up to 5 meeting rooms and 75 parties.
• Full-Band Opus Codec — Delivers rich, natural audio with jitter resilience up to 50% packet loss, so calls stay clear even on a dodgy connection.
• Three Gigabit Ports with PoE+ — Auto-sensing RJ45 network ports with NAT router support give you flexible deployment on almost any network.
• Free Wave App — Staff can make calls and send instant messages from desktops, the web, or Android and iOS devices, handy for hybrid and on-the-road workers.
• ZeroConfig Provisioning — Automatically sets up Grandstream SIP endpoints, cutting hours of manual configuration down to minutes.
• Built-In Security and Backup — Secure boot, a unique certificate, a random default password, and Hot Standby High-Availability support keep your calls protected and your system online.

Why Choose This Product?

Our Telrexperts rate the UCM6302A for businesses that want a capable phone system they own outright. It works with GDMS for cloud setup, management, and monitoring, and offers API access for CRM and PMS integrations. If you need a hand planning or configuring your setup, give our team a call.

What's in the Box

• Grandstream UCM6302A IP PBX
• 12V Power Adapter
• Ethernet Cable
• Quick Installation Guide