专利汇可以提供Communication terminal and exchange and communication network专利检索,专利查询,专利分析的服务。并且PURPOSE: To easily extend a service offered by an exchange, and also, to constitute a communication terminal connected to this exchange so that it can receive easily its service by executing the management of a function and a function request number by the exchange of a communication network.
CONSTITUTION: A communication terminal 1 is constituted by providing a signal device 3 for processing a signal of a D channel, plural function buttons 41-4n, a display device 5 for displaying the contents of a function shown by a depressed function button, a memory 6, and a processor 2 for controlling the communication terminal 1. In such a state, the function request number is managed by an exchange 7 side, and to each contained communication terminal 1, function request number system information is transferred from the exchange 7 side, therefore, even the function request number corresponding to a service extended newly, each communication terminal 1 can hold it in its own memory 6. In such a way, even when a service function offered from the exchange 7 is extended, the communication terminal 1 can receive an offer of the extended new service.
COPYRIGHT: (C)1991,JPO&Japio,下面是Communication terminal and exchange and communication network专利的具体信息内容。
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