Yeastar SO Module Specifications:

- Brand: Yeastar
- Model: SO
- Ports: 1 FXO RJ11 Port, 1 FXS RJ11 FXO Port
- FXO Ring Frequency Detection: 15~50 Hz
- FXS Ring Frequency: 25 Hz
- Termination: PSTN lines and Analog Telephone / Fax Machine
- Ring Voltage: 85V
- Failover: Support
- Echo Cancellation: Support
- Terminating Impedance Option: 600 Ohm
- Supported Models: S20, S50, S100, S300, P550, P560, P570
Yeastar SO module is a module with one FXO port and one FXS port to offer a unique PSTN failover function, enabling you to make/receive calls even when system powers down.
Yeastar SO Module Specifications:

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