APPARATUS, METHOD, COMPUTER PROGRAM PRODUCT, AND TERMINAL DEVICE FOR CONTROLLING COMMUNICATIONS
First Claim
1. A communication control apparatus that controls communications among plural terminals including first, second, and third terminals that are connected through a network, the apparatus comprising:
- a first receiving unit that receives from the second terminal, a switching request message requesting switching of a call counterpart of the third terminal that establishes a communication with the first terminal, from the first terminal to the second terminal;
a selecting unit that selects one of the second terminal and the third terminal as a transmission source terminal that transmits an establishment request message requesting establishment of a communication between the second terminal and the third terminal, according to a predetermined rule, when receiving the switching request message; and
a first transmitting unit that transmits to the transmission source terminal, a transmission request message requesting transmission of the establishment request message.
1 Assignment
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Accused Products
Abstract
A receiving unit receives from a second terminal, a switching request message requesting switching of a counterpart of a communication that a third terminal is establishing with a first terminal, from the first terminal to the second terminal. When receiving the switching request message, a selecting unit selects one of the second and third terminals based on a predetermined rule, as a transmission source terminal that transmits an establishment request message requesting establishment of a communication between the second terminal and the third terminal. A transmitting unit transmits to the transmission source terminal, a transmission request message requesting transmission of the establishment request message.
11 Citations
12 Claims
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1. A communication control apparatus that controls communications among plural terminals including first, second, and third terminals that are connected through a network, the apparatus comprising:
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a first receiving unit that receives from the second terminal, a switching request message requesting switching of a call counterpart of the third terminal that establishes a communication with the first terminal, from the first terminal to the second terminal; a selecting unit that selects one of the second terminal and the third terminal as a transmission source terminal that transmits an establishment request message requesting establishment of a communication between the second terminal and the third terminal, according to a predetermined rule, when receiving the switching request message; and a first transmitting unit that transmits to the transmission source terminal, a transmission request message requesting transmission of the establishment request message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A communication control method executed in a communication control apparatus that controls communications among plural terminals including first, second, and third terminals that are connected through a network, the method comprising:
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receiving from the second terminal a switching request message requesting switching of a call counterpart of the third terminal that establishes a communication with the first terminal, from the first terminal to the second terminal; selecting one of the second terminal and the third terminal as a transmission source terminal that transmits an establishment request message requesting establishment of a communication between the second terminal and the third terminal, according to a predetermined rule, when receiving the switching request message; and transmitting to the transmission source terminal, a transmission request message requesting transmission of the establishment request message.
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11. A computer program product having a computer readable medium including programmed instructions for controlling communications among plural terminals including first, second, and third terminals, wherein the instructions, when executed by a computer, cause the computer to perform:
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receiving from the second terminal a switching request message requesting switching of a call counterpart of the third terminal that establishes a communication with the first terminal, from the first terminal to the second terminal; selecting one of the second terminal and the third terminal as a transmission source terminal that transmits an establishment request message requesting establishment of a communication between the second terminal and the third terminal, according to a predetermined rule, when receiving the switching request message; and transmitting to the transmission source terminal, a transmission request message requesting transmission of the establishment request message.
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12. A terminal device that is connected to plural external terminals and a communication control apparatus for controlling communications among the external terminals, through a network, the terminal device comprising:
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a receiving unit that receives from the communication control apparatus, communication information including a communication identifier for identifying a communication established among the external terminals and terminal identifiers for identifying the external terminals that are establishing the communication having the communication identifier, in association with each other; and a transmitting unit that transmits to the communication control apparatus, a switching request message requesting switching of one of the external terminals that are establishing the communication having the communication identifier selected by referring to the received communication information, to the terminal device.
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Specification