The Grandstream UCM6308A 8-Port Audio IP PBX is a powerful unified communication solution that brings voice, instant messaging, and web audio meetings into one central system for seamless business collaboration. Designed for up to 1,500 users and 200 concurrent calls, it combines robust performance, secure connectivity, and advanced integration options for modern business environments.

• Supports 1,500 users and 200 concurrent calls with 8 RJ11 FXO ports

• Built-in audio conferencing, instant messaging, and web meeting tools for flexible communication

• Free Wave app for voice and IM access on desktops, web browsers, Android, and iOS devices

• Secure design with encrypted communication, unique certificates, and random default passwords

• NAT firewall traversal and high-availability features ensure reliable and secure remote access