Multi-channel access (mca) radio telephone system

Details Multi-channel access (mca) radio telephone system Multi-channel access (mca) radio telephone system

H - Electricity

04

B

325/30

H04B 7/24 (2006.01) H04Q 7/38 (2006.01) H04Q 7/20 (2006.01)

Patent

CA 1232024

ABSTRACT According to the present invention, there is provided a multi-channel access (MCA) radio telephone system for carrying calls with a plurality of radio channels shared by a combination of a base station coupled to a first telephone set, and a plurality of substations connected to a second telephone set, said MCA radio telephone system including a clearing method comprising the steps of: a) detecting the hanging-up of the first telephone set; b) maintaining the D.C. loop of the subscriber line of the first telephone set in response to the detection of the hung-up state and returning the radio channel to a waiting state; c) detecting the hanging-up of the second telephone set and again establishing a radio channel between the base station and the substation; d) sending through the re-established radio channel a release signal from the substation to the base station; and e) opening the D.C. loop in response to the release signal and placing the re-estab- lished radio channel into a waiting state.

450840

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