Method for interfacing a private branch exchange with a wireless communications network and also with the public switched telephone network
First Claim
1. A method for handling call requests, comprising:
- providing a private network including a plurality of private branch exchanges, the private branch exchanges being connectable to and being compatible with a public switched telephone network, and being connectable to but not being compatible with a wireless communication network;
providing a plurality of controllers having computer integration technology on the private network;
coupling one of the controllers to each of the plurality of private branch exchanges and to the wireless communication network, each of said controllers being capable of instructing the corresponding private branch exchange to which it is coupled to execute a proper protocol via computer telephony integration;
receiving a request at one of the controllers to complete a call originating from a wireless communication device to a central office;
executing a program in the controller corresponding said one of the private branch exchanges for determining whether or not a predetermined condition has been met, and if the predetermined condition has been met, determining said proper protocol for processing said request; and
instructing said one private branch exchange receiving said call request to execute said proper protocol, thereby enabling completion of said call originating from the wireless communication device to the central office.
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0 Petitions
Accused Products
Abstract
The present invention provides a system and method for using a standard private branch exchange (PBX), such as e.g., the Lucent Technologies, Inc. DEFINITY® PBX, for interfacing with a wireless (e.g., cellular, etc.) communication network and the public switched telephone network (PSTN). The system employs an adjunct controller and uses computer telephony integration (CTI) associated with a standard PBX to communicate directly with an audio switch and the PSTN. Through the use of CTI, the standard PBX also provides feedback to the caller. For example, when an inbound call arrives (i.e., from the PSTN to a radio transceiver), the adjunct controller determines whether the wireless system has available resources (i.e., an available link) to grant calls and instructs the PBX to provide an audio connection between dynamically assigned wireless links (e.g., RF channels). If no link is available, a busy signal is referred back to the PSTN, and eventually back to the originating switch.
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Citations
48 Claims
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1. A method for handling call requests, comprising:
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providing a private network including a plurality of private branch exchanges, the private branch exchanges being connectable to and being compatible with a public switched telephone network, and being connectable to but not being compatible with a wireless communication network;
providing a plurality of controllers having computer integration technology on the private network;
coupling one of the controllers to each of the plurality of private branch exchanges and to the wireless communication network, each of said controllers being capable of instructing the corresponding private branch exchange to which it is coupled to execute a proper protocol via computer telephony integration;
receiving a request at one of the controllers to complete a call originating from a wireless communication device to a central office;
executing a program in the controller corresponding said one of the private branch exchanges for determining whether or not a predetermined condition has been met, and if the predetermined condition has been met, determining said proper protocol for processing said request; and
instructing said one private branch exchange receiving said call request to execute said proper protocol, thereby enabling completion of said call originating from the wireless communication device to the central office. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for handling call requests, comprising:
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providing a private network including a plurality of private branch exchanges, the private branch exchanges being connectable to and being compatible with a public switched telephone network, and being connectable to but not being compatible with a wireless communication network;
providing a plurality of controllers having computer integration technology on the private network;
coupling one of the plurality of controllers to each of the plurality of private branch exchanges and to the wireless communication network, each of said controllers being capable of instructing the corresponding private branch exchange to which it is coupled to execute a proper protocol via computer telephony integration;
receiving a request at one of the private branch exchanges to complete a call originating from a central office to a wireless communication device;
executing a program in the controller corresponding to said one of the private branch exchanges for determining whether or not a predetermined condition has been met, and if the predetermined condition has been met, determining said proper protocol for processing said request; and
instructing said one private branch exchange receiving said call request to execute said proper protocol, thereby enabling completion of said call originating from the central office to the wireless communication device. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A system for handling call requests, comprising:
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a private network having plurality of private branch exchanges being connectable to and being compatible with a public switched telephone network, and being connectable to but being not compatible with a wireless communication network, thus preventing the private branch exchanges from communicating with the wireless communication network, the private network also having a plurality of controllers having computer integrated technology, each of said controllers being coupled to one of the private branch exchanges and the wireless communication network and for determining whether or not a predetermined condition has been met, instructing a corresponding one of the plurality of private branch exchanges with regard to communicating between the wireless communication network and the public switched telephone network, and if the predetermined condition has been met, enabling each of the private branch exchanges to communicate outgoing and incoming calls between the wireless communications network and the public switched network. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A system for handling call requests, including
a private network having an adjunct controller coupled to a private branch exchange, the adjunct controller also being coupled to a wireless communication network, the private branch exchange being connectable to and being compatible with a public switched telephone network, and being connectable to but not compatible with the wireless communication network, the adjunct controller having computer telephony integration technology for executing a program in order to determine whether or not a predetermined condition has been met, instructing the private branch exchange with regard to communicating between the wireless communication network and the public switched telephone network, and if the predetermined condition has been met, enabling the private branch exchange to communicate between the wireless communications network and the public switched telephone network, so that calls originating at a central office may be completed to wireless devices on the wireless communications network, and other calls originating at the wireless devices on the wireless communication may be completed at the central office.
Specification