Product Description
The Grandstream UCM6308A IP PBX is a high-performance unified communications platform built for medium and large enterprises that require a scalable, secure, and feature-rich business telephony solution. Designed to centralize voice communications, conferencing, messaging, mobility, and collaboration, the Grandstream UCM6308A delivers enterprise-grade functionality without recurring licensing fees. It supports up to 1,500 SIP users and 200 concurrent calls, making it an ideal choice for organizations with high communication demands.
Powered by the Asterisk telephony platform, the Grandstream UCM6308A offers advanced PBX capabilities, including IVR (Auto Attendant), intelligent call routing, voicemail, call recording, ring groups, call queues, extension management, and audio conferencing. It features 8 FXS ports and 8 FXO ports, allowing businesses to connect analog phones and PSTN lines while seamlessly integrating modern SIP-based communications. Zero-configuration provisioning for Grandstream IP phones and support for third-party SIP devices simplify deployment and management.
The built-in Wave application enables employees to make business calls, participate in meetings, send instant messages, and collaborate securely from Windows, macOS, Android, iOS, or web browsers. With GDMS cloud management, organizations can remotely provision, monitor, and maintain their communication infrastructure. Advanced security features such as encrypted communications, secure boot, automatic NAT traversal, and support for high availability ensure reliable and protected business communications. Whether deployed in corporate headquarters, educational institutions, hotels, healthcare facilities, manufacturing plants, or multi-branch enterprises, the Grandstream UCM6308A IP PBX provides a complete unified communication solution that improves productivity, simplifies administration, and supports future business growth.
Key Features
- Supports up to 1,500 SIP users
- Handles up to 200 concurrent calls
- 8 FXS ports for analog telephone connectivity
- 8 FXO ports for PSTN line integration
- Built-in IVR (Auto Attendant) and intelligent call routing
- Voicemail, call recording, call queues, and ring groups
- Supports multi-party audio conferencing
- Free Wave desktop, mobile, and web application
- Zero-configuration provisioning for Grandstream IP phones
- Compatible with third-party SIP phones and SIP trunks
- API support for CRM, PMS, and third-party integrations
- Three Gigabit Ethernet ports with integrated NAT router
- Advanced security with secure boot, TLS, SRTP, and encrypted communications
- Automatic NAT traversal for secure remote users
- Cloud provisioning and centralized management through GDMS
- Dual power supply support for enhanced reliability
- Rack-mountable design for enterprise deployments
- Based on the Asterisk open-source telephony platform
- Ideal for enterprises, hotels, hospitals, educational institutions, call centers, and multi-site organizations









