The future of signalling

This paper addresses the direction that signalling may take in the future. It is not meant to be a definitive document on the exact requirements that a network must support to accommodate applications. The term signalling is used to mean call control, or a set of application or some other monolithic piece of software. To date except for the BISUP specification, all of the signalling systems (i.e. CCITT No.7) are classified as monolithic. This term is used to indicate that the call control application and the signalling protocol are specified in one place.