Yeastar O2 Module (2FXO) is a module with 2 FXO ports to terminate two analog PSTN(POTS) lines. The O2 Module 2FXO is compatible with MyPBX series and S-Series PBX.
"Users: 100 (up to 200)
Max Concurrent Calls: 30 (up to 60)
Max Analog Ports: 8
Max BRI Ports: 8
Max Cellular Ports: 4
Max E1/T1/J1 Ports: 1
Expanion Boards: 1*EX30/EX08+1*D30
External Storage: USB,...