Service system for interconnecting heterogeneous communication terminals, and communication node device and communication terminal used in the same
First Claim
1. A service system for interconnecting heterogeneous communication terminals comprising a communication network, said communication network including:
- plural communication terminals each treating a different medium;
a communication node device; and
media converting means connected with said communication terminals via said communication node device;
said communication network including an information factor indicating an attribute of each of said communication terminals, said information factor being inserted in a message regarding a call establishment between each of said communication terminals and said .communication node device;
said communication node device operating so as to select a medium receivable by a destination communication terminal of said communication terminals, to correct destination message from an originating communication terminal of said communication terminals, and to forward a corrected destination message to said destination communication terminal, when a communication refusal from said destination communication terminal due to a communication terminal attribute disagreement is recognized in response to the destination message sent from said originating communication terminal to said destination communication terminal;
said media converting means, after a communication has been established between said originating communication terminal and said destination communication terminal , notifying said destination communication terminal that a destination call from said originating communication terminal has been received and notifying said originating communication terminal that the communication has been established through a media conversion;
whereby said originating communication terminal is notified that the media conversion has established the communication.
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Accused Products
Abstract
The present invention relates to a service system for interconnection between different kinds of communication terminals and to a communication node device and a communication terminal used in the same. The object of the invention is to offer versatility and to need no operation for media conversion by an originating party. An information factor indicating a communication terminal attribute is inserted in a message to establish a call between a communication terminal and a communication node device. In the communication node device, when a communication refusal from a destination communication terminal due to a communication terminal attribute disagreement is recognized in response to a destination message sent from the originating communication terminal to the destination communication terminal, a medium receivable by the destination communication terminal is selected and the destination message from the originating communication terminal is corrected. The corrected message is forwarded to the destination communication terminal. Then when communication is established, the media converting means notifies the destination communication terminal of the destination call from the originating communication terminal, while it notifies the originating communication terminal of a communication establishment through the media conversion.
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Citations
14 Claims
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1. A service system for interconnecting heterogeneous communication terminals comprising a communication network, said communication network including:
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plural communication terminals each treating a different medium; a communication node device; and media converting means connected with said communication terminals via said communication node device; said communication network including an information factor indicating an attribute of each of said communication terminals, said information factor being inserted in a message regarding a call establishment between each of said communication terminals and said .communication node device; said communication node device operating so as to select a medium receivable by a destination communication terminal of said communication terminals, to correct destination message from an originating communication terminal of said communication terminals, and to forward a corrected destination message to said destination communication terminal, when a communication refusal from said destination communication terminal due to a communication terminal attribute disagreement is recognized in response to the destination message sent from said originating communication terminal to said destination communication terminal; said media converting means, after a communication has been established between said originating communication terminal and said destination communication terminal , notifying said destination communication terminal that a destination call from said originating communication terminal has been received and notifying said originating communication terminal that the communication has been established through a media conversion; whereby said originating communication terminal is notified that the media conversion has established the communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication node device for use in a service system for interconnecting heterogeneous communication terminals, comprising:
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transmit/receive means for interchanging information between communication terminals; communication refusal recognizing means for recognizing a communication refusal via said transmit/receive means due to a communication terminal attribute disagreement from a destination communication terminal of said communication terminals in response to a destination message sent from an originating communication terminal of said communication terminals to said destination communication terminal, said destination message having an information factor indicating a communication terminal attribute; selecting means for selecting a medium receivable by said destination communication terminal when said communication refusal recognizing means recognizes that said destination communication terminal has executed a communication refusal due to the communication terminal attribute disagreement; destination message correcting means for correcting the destination message from said originating communication terminal based on a selection result when said selecting means selects a medium receivable by said destination communication terminal; forwarding means for forwarding a corrected destination message from said destination message correcting means to said destination communication terminal via said transmit/receive means; destination communication terminal notifying means for notifying said destination communication terminal that a destination call has been provided from said originating communication terminal via media converting means when a communication is established by forwarding the corrected destination message by said forwarding means; and originating communication terminal notifying means for notifying said originating communication terminal that the communication has been established through a media conversion, via said transmit/receive means. - View Dependent Claims (12)
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13. A communication terminal for use in a service system for interconnecting heterogeneous communication terminals, comprising:
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transmit/receive means for interchanging information with a communication node device; judging means for judging whether it is possible to communicate with an originating communication terminal, based on an information factor when a destination message sent from said communications node device to said originating communication terminal is received via said transmit/receive means, said information factor indicating an originating communication terminal attribute .included in said destination message; communication refusal transmitting means for transmitting a communication refusal due to a communication terminal attribute disagreement to said communication node device via said transmit/receive means when said judging means judges that a communication is not performed to said originating communication terminal due to the communication terminal attribute disagreement; and notifying means for notifying that a destination call from said originating communication terminal has been sent from said communication node device to a destination communication terminal after said communication refusal transmitting means transmitted a communication refusal. - View Dependent Claims (14)
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Specification