Telephonic communications – Special services – Conferencing
Patent
1996-08-23
1999-03-16
Matar, Ahmad F.
Telephonic communications
Special services
Conferencing
379207, 379220, H04M 342, H04M 700
Patent
active
058839470
ABSTRACT:
The present invention provides a method of and an apparatus for connecting terminals between switches wherein a connection of terminals via a plurality of switches can be established using a necessary minimum number of lines. In order to additionally connect, where terminal 1 and terminal 2 are interconnected via a plurality of switches and lines, terminal 3 to the connection, information, with which it can be identified which one of two switches is nearer to the added terminal, is stored into a short distance memory of each of the switches, and the terminal connection between the switches is adjusted using the short distance memories so that, from among the transit switches and transit lines, the line of the switch which is nearest to the added terminal may be connected to the added terminal. Or, information, with which, for each of occupied terminals, a switch or switches in which a called terminal or terminals are accommodated can be identified, is stored into the connected switch memory of each of the switches, and the terminal connection is adjusted between the switches using the connected switch memories so that, when one of the originating terminal and the terminating terminal and the added terminal are accommodated in one of the switches, the line of the switch and the added terminal may be connected to each other.
REFERENCES:
patent: 4873517 (1989-10-01), Baratz et al.
patent: 5408526 (1995-04-01), McFarland et al.
patent: 5619561 (1997-04-01), Reese
Matar Ahmad F.
NEC Corporation
Tieu Benny Q.
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