Functionality:
- FXS port allows connection of one analog device
- FXO port allows connection to one PSTN trunk line
- Ideal for small setups requiring minimal analog connectivity
Compatibility:
- Works with Yeastar S-Series PBX systems: S20, S50, S100, S300
- Installs into available module slot in the PBX chassis
Use Cases:
- Small offices with one analog phone and one PSTN line
- Backup connectivity via PSTN
- Simple deployments needing basic hybrid analog access
Installation:
- Plug-and-play module
- Easily installed into any open module slot on the PBX




