CPC = Calling Party Control

Signaling used to indicate that the calling party has hung up.
Usually an open loop disconnect, but sometimes on older equipment its a battery reversal.

Lack of CPC can cause problems when interfacing voice mail and other systems that depend on knowing when the callling party disconnects.


Created by: jht2, Last modification: Thu 06 of Jan, 2005 (02:10 UTC)
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