Call channel switching system

Abstract

Abstract PURPOSE:To execute switching of a call channel by a will of a subscriber of a terminal equipment side, who feels a noise, etc., by providing a control signal (manual channel switching request signal) between a channel control device and the terminal equipment. CONSTITUTION:For instance, a terminal equipment 21 is in a call state with other subscriber 29 by channels 24, 26 and 27 passing through a transmitter (TX) 22 and a receiver (RX) 23 of a radio base station, and a channel control device 25. When it is felt by a man's decision that a radio system is cross talked or a lot of noises exist, with respect to a quality of a call state and a will for switching a channel is generated, in the terminal equipment side, an operation of the terminal equipment is converted to a channel switching request signal 28 by a channel switching request signal sending-out function by operating a channel switching button, and it is send out to the channel control device 25 through the base station. When this signal is received, the channel control device 25 side executes the same processing as the channel switching detected by the receiver 23 of the radio base station. In this way, a drop of a call quality which cannot be detected automatically can be recovered.

Inventors

• 👤 Toru Daikyo
• 👤 徹 大饗

Bibliographic Details