Title :
A new NFA algorithm for SPC switching systems
Author :
Wanq Yingxu ; Wei Jia
Author_Institution :
Res. Inst. for Telecommun. & Automatic Control, Lanzhou Inst. of Railway Technol., China
Abstract :
The paper presents a new approach for the formal description of the software of stored program controlled (SPC) telephone switching systems. An event-driven algorithm based on nondefined finite automaton (NFA) are created. By using the algorithm, a new SPC 1+1 call processing technique for a party-line telephone switching system are implemented, and the problems which the traditional party-line technique find difficult to resolve, such as communication in secret, separate ringing, no-answer call forward and transferring call forward, are implemented.<>
Keywords :
electronic switching systems; finite automata; formal specification; telephone systems; telephone traffic; NFA algorithm; SPC 1+1 call processing technique; SPC switching systems; event-driven algorithm; formal description; no-answer call forward; nondefined finite automaton; party-line telephone switching system; secret; separate ringing; software; stored program control; telephone switching systems; transferring call forward; Switching systems;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.328061
