Mitel MH88615 ONS SLIC is a complete interface between a switching system and a subscriber loop, providing various functions including battery feed, integral ringing amplifier feed, 2W to 4W conversion current feed, off-hook and dial pulse detection, etc. The device is packaged in a 20-pin single-in-line package and is suitable for applications such as PABX, pair gain systems, satellite communication systems, key telephone systems, marine systems, and cordless local loops.