US005392344A
United States Patent [19] [ii] Patent Number: 5,392,344
Ash et al. [45] Date of Patent: Feb. 21,1995
U.S. Patent Feb. 21, 1995 Sheet 2 of 3 5,392,344
[54] COMMUNICATIONS NETWORK CLASS-OF-SERVICE ROUTING
[75] Inventors: Gerald R. Ash, West Long Branch;
Jin-Shi Chen, Holmdel, both of N.J.;
Alan E. Frey, Naperville, 111.; David
F. McGuigan, Franklin Township,
Somerset County, N.J.
[73] Assignee: AT&T Corp., Murray Hill, N.J.
[21] Appl. No.: 770,396
[22] Filed: Oct 3,1991
[51] Int. CI.6 H04M 7/00; H04M 11/00;
H04M 15/00; H04M 3/00
[52] U.S. CI 379/221; 379/94;
379/112; 379/243
[58] Field of Search 379/201, 207, 210, 219,
379/220, 221, 243, 244, 94, 112
[56] References Cited
U.S. PATENT DOCUMENTS
4,191,860 3/1980 Weber 379/211 X
4,577,066 3/1986 Bimonte et al 379/243 X
4,837,816 6/1989 Mizuhara et al 379/221
5,086,460 2/1992 Ash et al 379/221
5,101,451 3/1992 Ash et al 379/221
5,131,016 7/1992 Broughton et al 379/221
FOREIGN PATENT DOCUMENTS
0250791 10/1987 Japan 379/220
0108862 5/1991 Japan 379/94
The routing of calls of different classes of services as well as the administration thereof is enhanced by associating each such class of service with a number of parameters common to such services, such that each class of service, as well as a new class of service, may be readily identified by its respective parameter values. Accordingly, the routing and administration of calls of different classes of services may be handled in a systematic, straight forward manner so that basic network capabilities may be made available to various services using an administratively defined menu like structure. In addition, such class of service advantageously partitions network bandwidth allocation, call routing priority, voice/data transport, and traffic data registers into respective classes of services.
17 Claims, 3 Drawing Sheets
