Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
Patent
1990-01-23
1992-02-04
Brown, Thomas W.
Telephonic communications
Plural exchange network or interconnection
Interexchange signalling
379207, 379284, 379289, H04M 342, H04M 706, H04M 712
Patent
active
050864610
ABSTRACT:
The invention relates to upgrading existing telephone central offices having 1ESS or 1AESS switching equipment to utilize the SS7 protocol. In particular, the 1ESS and 1AESS switching equipment is provided with the capability of controlling the connection, management, and disconnection of telephone circuits using Signaling System Number 7 (SS7), a national and international standard set of protocols for providing such circuit control and providing and receiving information via the SS7 protocol for enabling enhanced service in the switching equipment.
REFERENCES:
patent: 4247740 (1981-01-01), Anderson et al.
patent: 4499336 (1985-02-01), Krikor et al.
patent: 4611096 (1986-09-01), Asmuth
patent: 4636584 (1987-01-01), Binkard et al.
patent: 4685127 (1987-08-01), Miller et al.
patent: 4720854 (1988-01-01), Sand
patent: 4782519 (1988-11-01), Patel et al.
patent: 4853955 (1989-08-01), Thorn et al.
"CCITT Signalling System No. 7 in AXE 10", Jan Du Reitz et al., Ericsson Review (Sweden), No. 2, 1982, pp. 100-105.
Patel Rajendra
Sohl Gordon
Thorn David W.
Brown Thomas W.
Meier Harold E.
Network Access Corporation
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