Apparatus and method for virtual private telephone line with aut

Details Apparatus and method for virtual private telephone line with aut Apparatus and method for virtual private telephone line with aut

1994-02-01

1996-01-23

Hofsass, Jeffery A.

Telephonic communications

Plural exchange network or interconnection

With interexchange network routing

379207, 379216, 379221, 379229, 379230, 379241, H04M 710

Patent

active

054871107

ABSTRACT:
Apparatus and method for establishing a virtual private line with automatic ring down is provided. The virtual private line uses the SS7 switching network of present telephone systems coupled between the customer premises equipment of two virtual private line customers.

REFERENCES:
patent: 3637946 (1972-01-01), Hamrick
patent: 4348554 (1982-09-01), Asmuth
patent: 4802199 (1989-01-01), Lange et al.
patent: 4982421 (1991-01-01), Kirsch et al.
patent: 5046181 (1991-09-01), Higuchi et al.
patent: 5303290 (1994-04-01), Redberg et al.
DSP-005-5508-108-20 STD, DSC Communication Corporation publication of Mar. 1986 "Hotline Description", Technical Description Digital Standard practice, of 9 pages length.
ANSI TI.112-1993, American National Standard For Telecommunications, "Signalling System No. 7(SS7)-Integrated Services Digital Network (ISDN) User Part", Jul. 16, 1992.
Jeffrey Brosemer, Virtual Networks, IEEE Communications Magazine, Mar. 1992, pp. 80-85.

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