channel associated signaling การใช้

In the following section and by way of example, channel associated signaling will be looked.
Some digital interfaces such as Channel Associated Signaling also use versions of E & M signaling.
In the E1 PCM system, signaling information can be transmitted by two different methods : the common channel signaling ( CCS ) method and the channel associated signaling ( CAS ) method.
However, in the T-carrier systems used in the U . S . and Canada, a technique called bit-robbing uses, in every sixth frame, the least significant bit in the time slot associated with the voice channel for Channel Associated Signaling ( CAS ).