- Boost ringing on FXS ports or IP phone system analog ports that are weak or fail
- Boost ring power on analog PABX/KSU stations that are weak or fail
- Reshapes troublesome distorted ringing signals
- True Sine wave ring signal output
- Boosts ring to 4 REN
- Caller ID compatible
- Easy RJ-21X installation
- Compatible with distinctive ringing services
- Will not affect normal line operation
- Reshapes troublesome square wave ringing
- Fax and modem compatible
- Not compatible with pulse dialing
Ringers and Speakers: Yes
Color: Black
