UCM 6304
(GRANDSTREAM)
Supports up to 2000 users and up to 300 concurrent calls
Zero configuration provisioning of Grandstream SIP endpoints
Built-in conferencing & meetings platform; supports desktop, Wave app, and SIP endpoints
Wave for Android, iOS, Chrome and Firefox browsers allows communication with all UCM6304 users & solutions
API available for third-party integrations, including CRM and PMS platforms
Advanced security protection with secure boot, unique certificate and random default password to protect calls and accounts
Three Gigabit auto-sensing RJ45 network ports with integrated PoE+ and support NAT router
Automated NAT firewall traversal service facilitates secure remote connections
Supports Full-Band Opus voice codec and H.264/H.263/ H.263+/H.265/VP8 video codec, jitter resilience up to 50% packet loss
Compatible with GDMS for cloud setup, management and monitoring
Based on Asterisk* version 16 open source telephony operating system
FXS Ports
• 4 × RJ11 Analog Telephone Ports with Lifeline capability.
FXO Ports
• 4 × RJ11 PSTN Line Ports with Lifeline capability.
Network Interfaces
• Three self-adaptive Gigabit Ethernet ports with PoE+ support.
Peripheral Ports
• 2 × USB 3.0 Ports.
• 1 × SD Card Interface.
LED Indicators
• Power 1/2, FXS, FXO, LAN, WAN & Heartbeat LEDs.
Display
• 128 × 32 Dot Matrix Graphic LCD with DOWN & OK buttons.
Voice-over-Packet Capabilities
• LEC with NLP, 128ms Echo Cancellation, Dynamic Jitter Buffer, NetEQ, FEC 2.0 and up to 50% packet loss resilience.
Voice & Fax Codecs
• Supports Opus, G.711 A/U, G.722, G.722.1, G.722.1C, G.723.1, G.726-32, G.729A/B, iLBC, GSM and T.38.
Video Codecs
• H.265, H.264, H.263, H.263+ and VP8.
Telephony Platform
• Based on Asterisk® Version 16.
Security
• Supports SRTP, TLS, HTTPS, SSH, 802.1X and ZRTP encryption.
Power Supply
• Input: 100–240VAC, 50/60Hz.
• Output: DC 12V, 2A.
Dimensions
• 485 × 187.2 × 46.2 mm.
Weight
• 2490 g.
Installation
• Desktop & Rack Mount.
Capacity
• Supports up to 2,000 Users.
• Up to 300 Concurrent Calls.
• Up to 200 Concurrent SRTP Calls.
Meeting Capacity
• Unlimited Meeting Rooms.
• Up to 15 Public Meeting Rooms.
• Up to 200 Participants.
• Up to 9 Video Feeds per Room.
Call Features
• Call Forward, Call Transfer, Call Waiting, IVR, DID/DOD, Call Queue, BLF, Voicemail, Video Conference, Fax to Email, Email to Fax, Follow Me, Emergency Calling and more.
Management
• Zero-touch provisioning and centralized management through Grandstream GDMS.
Compliance
• FCC, CE, IC, RCM and UL 62368-1 Certified.