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  • Manufacturer: Grandstream
  • Model: High Availability Controller HA100
  • Analog Telephone FXS Ports: 6 ports
  • PSTN Line FXO Ports: 6 ports
  • T1/E1 Interface: 3 port
  • Network Interfaces: 3 LAN , 3 WAN
  • Manufacturer: Grandstream
  • Model: IP PBX UCM6202
  • FXO Ports: 2
  • FXS Ports: 2
  • Gigabit Ports: 2
  • Users: 500
  • Concurrent Calls: 30
  • Conference Bridges: 3
  • Status: End of Life
  • Replacement: UCM6302
  • Manufacturer: Grandstream
  • Model: IP PBX UCM5208
  • FXO Ports: 8
  • FXS Ports: 2
  • Gigabit Ports: 2
  • Users: 800
  • Concurrent Calls: 100
  • Conference Bridges: 6
  • Attendees p/ bridge: 32
  • Status: End of Life
  • Replacement: UCM6308
  • Manufacturer: Grandstream
  • Model: UCM6302
  • Users: 1000
  • Concurrent calls: 200 
  • Max concurrent SRTP calls: 120
  • Video Conference: Up tp 20
  • Analog Telephone FXS Ports: 2 RJ11 Port PSTN Line
  • FXO Ports: 2 RJ11 Port
  • Voice Conference: Up to 80
  • Manufacturer: Grandstream
  • Model: UCM6304
  • Users: 2000
  • Concurrent calls: 300 
  • Max concurrent SRTP calls: 200
  • Video Conference: Up tp 20
  • Analog Telephone FXS Ports: 4 RJ11 Port 
  • FXO Ports: 4 RJ11 Ports
  • Voice Conference: Up to 80
  • Manufacturer: Grandstream
  • Model: UCM6308
  • Users: 3000
  • Concurrent calls: 450 
  • Max concurrent SRTP calls: 300
  • Video Conference: Up tp 20
  • Analog Telephone FXS Ports: 2 RJ11 Port PSTN Line
  • FXO Ports: 8 RJ11 Port
  • Voice Conference: Up to 80
  • Manufacturer: Grandstream
  • Model: UCM6510
  • Mounting Option: Rackmount, Desktop
  • Number of FXS Ports: 2
  • Number of FXO Ports: 2
  • Number of Digital Ports: 1
  • Manufacturer: Xontel
  • Model: Plus IP PBX
  • Number of Users: 60 Users
  • Number of Concurrent Calls: 15
  • Supports IVR: Yes
  • Supports Landline: Yes
  • Support SIM Cards: No
  • Manufacturer: Xontel
  • Model: XT-400FXO Gateway
  • Number of ports: 4 FXO ports