Device and method for telephony interconnection intended to offe

Telephonic communications – Audio message storage – retrieval – or synthesis

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379 58, 379 59, 455331, H04M 1100, H04Q 700

Patent

active

054085160

ABSTRACT:
In a communications network between fixed stations and fixed terminals, the said fixed stations being linked to the telephony channels while the fixed terminals include an antenna for mutual interaction over distance with independent stations, connection means to the telephony channels of the network are provided, and there is established a telephony relationship between an independent station and another station linked to the telephony channels of the network, by an intermediary of a primary link between the independent station and the connection means, via antennas of a primary fixed terminal. A secondary fixed terminal is chosen on the basis of predetermined selection criteria, and a secondary link is established between the independent station (SA) and the connection means, via an antenna of the secondary fixed terminal. In response to a predetermined station condition, relating to the primary link, a predetermined request information item is generated from the independent station and, in response to reception of the request information item, the said relationship is switched so that it passes through this secondary link.

REFERENCES:
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patent: 4797947 (1989-01-01), Labedz
patent: 4829554 (1989-05-01), Barnes et al.
patent: 4965825 (1990-10-01), Harvey et al.
patent: 4972456 (1990-11-01), Kaczmarek et al.
patent: 4980907 (1990-12-01), Raith et al.
patent: 5042082 (1991-08-01), Dahlin
patent: 5289525 (1994-02-01), Isserman et al.
Raith, et al. "Capacity of Digital Cellular TDMA Systems" IEEE Transactions on Vehicular Technology, vol. 40, #2, May 1991.

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