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1. (WO1979000253) COMMUNICATION SYSTEM CONFERENCING ARRANGEMENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000253 International Application No.: PCT/US1978/000124
Publication Date: 17.05.1979 International Filing Date: 26.10.1978
IPC:
H04M 3/56 (2006.01) ,H04Q 3/54 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
3
Automatic or semi-automatic exchanges
42
Systems providing special services or facilities to subscribers
56
Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
Q
SELECTING
3
Selecting arrangements
42
Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
54
in which the logic circuitry controlling the exchange is centralised
Applicants:
Inventors:
Priority Data:
84721631.10.1977US
Title (EN) COMMUNICATION SYSTEM CONFERENCING ARRANGEMENT
(FR) DISPOSITION POUR LA TRANSMISSION EN CONFERENCE DANS UNE INSTALLATION DE COMMUNICATION
Abstract:
(EN) A communication conferencing arrangement is disclosed which relies upon use of a plus/minus (+ / -) nonlocking button (210) followed by the operation of a button (210) associated with any other line appearing at the station. If the operated line button (210) is associated with a currently active line that line will be removed from the conference. If, however, the operated button (210) is associated with a nonactive line (held or idle) then that line will be added, in conference fashion with the communication leads of the enabling station. Provision is made to allow any number of added connections up to a preset maximum number at any station.
(FR) Une transmission en conference est etablie en actionnant dans l"ordre une touche plus/moins (+/-) avec retour (210) et une touche (210) associee a toute autre ligne aboutissant au poste. Si la touche de ligne (210) actionnee est associee a une ligne courante active, cette ligne sera sortie de la conference. Cependant, si la touche (210) actionnee est associee a une ligne non active (prise ou libre), cette ligne sera ajoutee, dans le mode conference, avec les lignes de communication du poste. Un agencement permet un nombre quelconque de connexions additionnelles jusqu"a un nombre maximum donne a chaque poste.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)