Technical Details:
�� Model: UCM6304A
�� Users Supported: Up to ~750–1000 users (varies by deployment)
�� Concurrent Calls: Up to ~150–200 calls
�� Analog Interfaces: 4 × FXS and 4 × FXO RJ11 ports for analog phones/PSTN lines
�� Network Ports: 3 × Gigabit RJ45 with PoE+ and NAT/router support
�� VoIP Platform: Asterisk-based communications OS (version 16)
�� Built-In Features:
�� Instant Messaging (IM) and Presence
�� Audio conferencing & web meetings
�� Integrated IVR and auto attendant
�� Zero-configuration provisioning for Grandstream SIP endpoints
�� Codec Support: G.711, G.722, Opus full-band, G.729, T.38 fax, and more
�� Security & Networking: Secure boot, SRTP/TLS, automated NAT/firewall traversal, advanced QoS
�� Expansion & Integration: API support for CRM/PMS and GDMS cloud management
�� Local Interfaces: USB ports and SD card interface (for backup/recording)
�� Display: 320×240 color LCD touchscreen
�� Power: 100–240 VAC input, DC 12 V output
�� Mounting: Desktop or wall mountable