4 Channel CPC Disconnect has four independent channels of CPC generation. Each channel will generate a CPC disconnect signal on a PABX analog station (or any other line that does not provide this signal). Calling Party Control (CPC) signal is a momentary break in phone line loop current, which is used to signal automated telco equipment (ie. voice mail, call sequencers, etc.) the distant party has hung up.
4 Channel CPC Disconnect Features:
Handle 4 lines in 1 unit
Phone line powered (no AC needed)
LED light shows when in use, audio detected, or generated CPC signal
Central office telephone lines typically provide CPC signal, but analog PABX stations do not
Generates a 1 second disconnect when it detects busy signal, reorder tones (fast busy), return to dial tone, or steady silence