The Grandstream UCM6204 is an IP PBX (Private Branch Exchange) designed for small to medium-sized businesses (SMBs). It integrates voice, video, data, and mobility features into a unified communication platform. It supports up to 500 users and can handle 50/75 concurrent calls. The UCM6204 features 4 FXO (Foreign Exchange Office) and 2 FXS (Foreign Exchange Station) ports for connecting to traditional phone systems and devices.
- Unified Communication: Integrates voice, video, data, and mobility into a single platform.
- User Capacity: Supports up to 500 users.
- Call Handling: Can handle up to 50/75 concurrent calls.
- FXO/FXS Ports: Provides 4 FXO ports for PSTN trunking and 2 FXS ports for analog telephones.
- Gigabit Ethernet: Includes dual Gigabit RJ45 ports with integrated PoE Plus (Power over Ethernet).
- Security: Offers robust security features like SRTP, TLS, and HTTPS encryption.
- Web Interface: A web-based user interface for managing the system and its features.
- Voicemail: Provides voicemail storage and management features.
- Call Recording: Includes a built-in call recording server.
- Zero Configuration: Supports zero-configuration provisioning of Grandstream SIP endpoints.
- Interoperability: Designed to work with various SIP endpoints and systems.
The UCM6204 is suitable for businesses that need a cost-effective and reliable IP PBX solution to manage their voice and communication needs. It can be used for various applications, including:
- Call Center: Handles incoming calls and manages queues.
- Customer Service: Provides a professional communication interface for customer interactions.
- Internal Communication: Facilitates communication between employees and departments.
- Remote Work: Allows employees to work remotely using VoIP

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