Method and apparatus for providing virtual facility communication service
First Claim
1. A private communication system including a common controller connected over a communication facility to a switching office and connected over a communication loop to a station set, said common controller comprisingmeans for receiving a predetermined signal preceding a called party signal from a user at said station set,means for accessing a virtual facility table using said predetermined signal to obtain a virtual facility number to establish a connection between said communication system and a second private communication system via said switching office, said virtual facility number including an intersystem dialing signal and a predefined code identifying the position where said calling party signal should be inserted within said virtual facility number, andmeans for sending to said switching office a composite dialing signal including said intersystem dialing signal and said called party dialing signal wherein said called party dialing signal is positioned in said composite dialing signal in accordance with said position identifying code.
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Accused Products
Abstract
A communication system is arranged to provide a virtual private line facility connection to another communication system using the public switched network. In response to a predetermined signal preceding a called party dialing signal received from a user, the system accesses a virtual facility table to obtain an intersystem dialing signal necessary to establish a connection to an access line of the other communication system. The system sends the intersystem dialing signal followed by the called party dialing signal to the public switched network. The intersystem dialing signal establishes a connection to the other system which then uses the received called party dialing signal to establish a connection from that system to the called party. The virtual facility table is made accessible to speed dialing, repertory dialing, station message detail recording and automatic route selection features of the system.
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Citations
12 Claims
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1. A private communication system including a common controller connected over a communication facility to a switching office and connected over a communication loop to a station set, said common controller comprising
means for receiving a predetermined signal preceding a called party signal from a user at said station set, means for accessing a virtual facility table using said predetermined signal to obtain a virtual facility number to establish a connection between said communication system and a second private communication system via said switching office, said virtual facility number including an intersystem dialing signal and a predefined code identifying the position where said calling party signal should be inserted within said virtual facility number, and means for sending to said switching office a composite dialing signal including said intersystem dialing signal and said called party dialing signal wherein said called party dialing signal is positioned in said composite dialing signal in accordance with said position identifying code.
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12. A method of operating a first private communication system for establishing a public switched network communication connection between said first system and a second private communication system via a switching office, the method comprising the steps of
receiving a predetermined signal preceding a called party dialing signal from a user at said first system, accessing a facility table at said first system using said predetermined signal to obtain a virtual facility number to establish a connection between said first and second systems, said virtual facility number including an intersystem dialing signal and a predefined code identifying the position of said called party dialing signal within said virtual facility number, and sending a composite dialing signal to said switching office including said intersystem dialing signal and said called party dialing signal positioned in said composite dialing signal in accordance with said position identifying code.
Specification