Call processing

In telecommunications, the term call processing has the following meanings:


 * 1) The sequence of operations performed by a telephone switching system from the acceptance of an incoming telephone call through the final disposition of the call.
 * 2) The end-to-end sequence of operations performed by a telecommunications network from the instant a call attempt is initiated until the instant the call release is completed.
 * 3) In data transmission, the operations required to complete all three phases of an information transfer transaction.