System for double frequency mobile phone to enter fixed telephone communication network

Abstract

A system of entering hand-free telephone communication network by single frequency of a double frequency cell phone includes a radio communication network, a hand-free network and a double frequency cell phone added by a subfrequency base station which, the master and subfrequency bands are applied to transfer out or in information with the master one and transfer out with the sub, master frequency information is transferred in or out via the radio which uses the master only and the subfrequency base station is connected with the handle-free network receiving subfrequency signals and outputting received information via the hand-free, the subfrequency base station rocords the charging information of the cell pone number, time to send them to a predetermined place.

Description

technical field [0001] The invention relates to the communication field, in particular to a communication system utilizing a mobile phone. technical background [0002] Many current wireless communication network systems have adopted dual frequency, using two communication channels such as 900M and 1800M, and have adopted dual frequency mobile phones. The wireless communication network uses two communication channels, resulting in a waste of resources, and also increases the maintenance and use costs of the transmitting and receiving equipment of the network system. How to save communication system resources when using a mobile phone in a fixed state or at a slow speed has been a research topic. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a new system that saves the resources of the wireless communication network system. Under this system, the wireless communication network system can mainly use one communic...

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