초록 ▼

A method and apparatus allow a multi-line telephone user in a cellular network to notify a fixed cellular terminal supporting both analog and digital voice channels and/or its controller to request an analog channel for an incoming or outgoing modem, prior to the call. For analog FAX transactions, t

A method and apparatus allow a multi-line telephone user in a cellular network to notify a fixed cellular terminal supporting both analog and digital voice channels and/or its controller to request an analog channel for an incoming or outgoing modem, prior to the call. For analog FAX transactions, the cellular terminal automatically requests the analog channel after detecting the starting tones associated with the FAX transaction. This assures that the fixed cellular terminal will set up an analog channel for the incoming or outgoing analog modem data or FAX data, so that the data can be transmitted to and from the analog multi-line user. In the absence of notification of a modem call or fax start tones call, the fixed cellular terminal can use a digital voice channel to transmit voice data, so that more data can be transmitted per frequency band.

대표청구항 ▼

[ What is claimed is:] [1.] In a cellular network comprising at least a base station and a plurality of cellular terminals, a method of transmitting analog tone data between an analog terminal and a cellular terminal via a fixed cellular terminal supporting both analog and digital voice channels and

[ What is claimed is:] [1.] In a cellular network comprising at least a base station and a plurality of cellular terminals, a method of transmitting analog tone data between an analog terminal and a cellular terminal via a fixed cellular terminal supporting both analog and digital voice channels and the base station, the method comprising the following steps:requesting an analog channel over which to transmit the analog tone data via the fixed cellular terminal supporting both analog and digital voice channels and the base station, before the analog tone data is transmitted;establishing an analog channel in response to the request for an analog channel; andtransmitting the analog tone data between the cellular terminal and the analog terminal over the established analog channel via the fixed cellular terminal supporting both analog and digital voice channels and the base station.