Customer premise equipment network integrator

Details Customer premise equipment network integrator Customer premise equipment network integrator

1994-03-01

1996-10-29

Hofsass, Jeffery

Telephonic communications

Plural exchange network or interconnection

With interexchange network routing

379221, 379376, H04M 706

Patent

active

055704204

ABSTRACT:
A customer premise equipment (CPE) network integrator (CNI) (20) is connected to today's integrated telephone network to provide additional and improved telephone services. The CNI (20) is connected between a CPE (10) and a network switch (30) and is connected to an STP (40). The CNI (20) detects existing inband call progress network tones, such as dial tone, busy, audible ringback, etc. and a variety of local CPE events, such as offhook, onhook, etc. and uses these tones and events to infer a change in network state. In response to certain network state changes, the CNI (20) queries a network service control point (SCP) (50) and requests call processing information. In response to the call processing information from the SCP (50), the CNI (20) processes the phone call. Because the CNI (20) can infer changes in network states from inband call progress network tones and local CPE events, the CNI (20) can bypass the network switch (30). This configuration allows implementation of AIN telephone services in today's integrated network.

REFERENCES:
patent: 4653094 (1987-03-01), Rasmussen
patent: 4873717 (1989-10-01), Davidson
patent: 4924493 (1990-08-01), Dang
patent: 4935958 (1990-06-01), Morganstein
patent: 4979118 (1990-12-01), Kheradpir
patent: 5046088 (1991-09-01), Margulies
B. K. Schwartz, "Right before your eyes", Bellcore Exchange Sep. /Oct. 1992 pp. 16-19.
B. K. Schwartz, "The Analog Display Services Interface,"IEEE Communications Magazine, Apr. 1993, pp. 70-75.

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