common channel signaling (CCS)
Common channel signaling (CCS) is signaling (for example, in a T-carrier system line) in which a group of voice-and-data channels share a separate channel that is used only for control signals. This arrangement is an alternative to channel associated signaling (CAS), in which control signals, such as those for synchronizing and bounding frames, are carried in the same channels as voice and data signals.
This was last updated in June 2006
