Exchange, and telephone exchange method
AssigneeNEC Platforms, Ltd.
InventorsHidetoshi Eshiro, Hiroyuki Ebihara, Tomohiro Ohno
Life of this patent
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Abstract
A first gateway registers an extension number of a terminal apparatus to an extension control means. A flow control means routes an outgoing call originated from the terminal apparatus and an outgoing call addressed to the terminal apparatus between the first gateway and a second gateway. When receiving the outgoing call originated from the terminal apparatus from the first gateway, the extension control means processes the outgoing call as an outgoing call from the extension number of the terminal apparatus. In addition, when an outgoing call addressed to the extension number of the terminal apparatus is made, the extension control means transmits the outgoing call addressed to the terminal apparatus to the first gateway.
Claims22
An exchange comprising:
- an extension controller configured to control a call of a terminal apparatus connected to an external exchange;
- a first gateway configured to transmit an outgoing call originated from the terminal apparatus to the extension controller and receive an outgoing call addressed to the terminal apparatus from the extension controller;
- a second gateway configured to receive the outgoing call originated from the terminal apparatus from the terminal apparatus via the external exchange, and transmit the outgoing call addressed to the terminal apparatus to the terminal apparatus via the external exchange, the second gateway being connected to the external exchange via a network;
- and
- a flow controller configured to route the outgoing call originated from the terminal apparatus and the outgoing call addressed to the terminal apparatus between the first gateway and the second gateway, wherein
- the first gateway registers an extension number of the terminal apparatus in the extension controller, and
- the extension controller processes, when receiving the outgoing call originated from the terminal apparatus from the first gateway, the outgoing call as an outgoing call from the extension number of the terminal apparatus, and transmits, when an outgoing call addressed to the extension number of the terminal apparatus is made, the outgoing call addressed to the terminal apparatus to the first gateway.
A telephone exchange method comprising:
- registering, by a first gateway connected to an extension controller that controls a call of a terminal apparatus connected to an external exchange, an extension number of the terminal apparatus in the extension controller;
- receiving, by a second gateway connected to the external exchange via a network, an outgoing call originated from the terminal apparatus via the external exchange;
- routing the outgoing call originated from the terminal apparatus from the second gateway to the first gateway;
- transmitting the outgoing call originated from the terminal apparatus from the first gateway to the extension controller;
- and
- processing, by the extension controller, the outgoing call as an outgoing call originated from the extension number of the terminal apparatus when the outgoing call originated from the terminal apparatus is received.
A telephone exchange method comprising:
- registering, by a first gateway connected to an extension controller that controls a call of a terminal apparatus connected to an external exchange, an extension number of the terminal apparatus in the extension controller;
- transmitting, by the extension controller, an outgoing call addressed to the terminal apparatus to the first gateway when the outgoing call addressed to the extension number of the terminal apparatus is made;
- receiving, by the first gateway, the outgoing call addressed to the terminal apparatus from the extension controller;
- routing the outgoing call addressed to the terminal apparatus from the first gateway to a second gateway connected to the external exchange via a network;
- and
- transmitting, by the second gateway, the outgoing call addressed to the terminal apparatus to the terminal apparatus via the external exchange.
Dependencies are inferred from the claim text.