Speech communication system and communication apparatus for speech communication system, and telephone exchange apparatus
First Claim
1. A speech communication system comprising:
- a plurality of connection apparatuses to connect a circuit line and a communication network transmitting a plurality of speech packets and control packets, the circuit line being connected at least one of terminal and transmitting a corresponding speech signal, to communicate between the terminal and the communication network, respectively; and
a controller which controls to forward an incoming call to another connection apparatus, when the incoming call arrives via the connection network and there exists no available circuit line, in each the connection apparatuses.
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Accused Products
Abstract
A telephone exchange apparatus includes a first interface to connect a circuit line being connected at least one of terminal and transmitting a corresponding speech signal, a plurality of second interfaces to connect a communication network including a plurality of speech channels allowing a transmission of a plurality of speech packets and at least one of control channel allowing a transmission of a plurality of control packets, a exchanger which connects between the first interface and at least one of the second interfaces according to a call setting request, and a controller which controls to forward an incoming call to another second interface, when the incoming call arrives through the control channel of the connection network and there exists no available communication channels, in each the second interfaces.
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Citations
16 Claims
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1. A speech communication system comprising:
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a plurality of connection apparatuses to connect a circuit line and a communication network transmitting a plurality of speech packets and control packets, the circuit line being connected at least one of terminal and transmitting a corresponding speech signal, to communicate between the terminal and the communication network, respectively; and
a controller which controls to forward an incoming call to another connection apparatus, when the incoming call arrives via the connection network and there exists no available circuit line, in each the connection apparatuses. - View Dependent Claims (2, 3, 4, 5)
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6. A communication apparatus for use as a plurality of connection apparatus in a speech communication system including the connection apparatuses to connect a circuit line and a communication network transmitting a plurality of speech packets and control packets, the circuit line being connected at least one of terminal and transmitting a corresponding speech signal, respectively;
- comprising;
a controller which controls to forward an incoming call to another connection apparatus, when the incoming call arrives via the connection network and there exists no available circuit line. - View Dependent Claims (7, 8, 9, 10)
- comprising;
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11. A telephone exchange apparatus comprising:
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a first interface to connect a circuit line being connected at least one of terminal and transmitting a corresponding speech signal;
a plurality of second interfaces to connect a communication network including a plurality of speech channels allowing a transmission of a plurality of speech packets and at least one of control channel allowing a transmission of a plurality of control packets;
a exchanger which connects between the first interface and at least one of the second interfaces according to a call setting request; and
a controller which controls to forward an incoming call to another second interface, when the incoming call arrives through the control channel of the connection network and there exists no available communication channels, in each the second interfaces. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification