Channel-associated signaling

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Channel associated signaling (CAS) is a type of digital signaling in which the signaling information is carried in the same communications channel as the payload. Another common term for this is in-band signaling and one of the most common examples cited is the robbed-bit signaling that is sometimes used on a T-1.

See Also

PodSnacks

<mp3>http://podcast.hill-vt.com/podsnacks/2007q3/in-band_out-of-band.mp3%7Cdownload</mp3> | In-band vs. out-of-band signaling