Telefonaktiebolaget Lm Ericsson (publ)

Ericsson Gmbh

Johan Per Falk

Bjorn G Ahlberg

Anders Lennart Molne

Bjorn E Jonsson

Anders Molne

Walter Ghisler

Johan Kristofer Olsson

Jan Ingemar Swerup

Bjorn Gustav Ahlberg

A mobile radio terminal includes a display for outputting at least one menu. The menu includes at least one branch for processing telephone calls. Each of the branches includes at least one option for choosing a corresponding action to be performed by the radio terminal, the corresponding actions including causing a successive branch to be displayed and performing a terminal function. The mobile terminal includes a selection mechanism for designating one of the options. A first key is included for confirming selection of the option designated by the selection means, so as to move forward through the menu to a succeeding branch and perform the corresponding action chosen by the confirmed option, and for originating and answering telephone calls. A second key is included for rejecting selection of the option designated by the selection mechanism, so as to move backward through the menu to a preceding branch, and for terminating telephone calls.

Uniform man-machine interface for cellular mobile telephones

A mobile radio network includes a number of mobile radio systems, each having a mobile radio services switching center which conveys calls between a number of cordless subscribers and a public switched telephone network which is common to the mobile radio systems which convey calls between a number of cordless subscribers, and a public switched telephone network which is common to the mobile radio systems which convey calls between wire-connected subscribers and also to the cordless subscribers via the mobile radio switching centers. If a cordless subscriber has roamed from its home system to a visitor system, a call from a third system can be transferred generally over the home system and the public network to the subscriber. A service node is assigned to each of the mobile radio systems and each such node keeps an account of where the home subscribers of respective mobile radio systems are located and, in cooperation with other service nodes, can connect a call from a subscriber in the third mobile radio system to the roaming subscriber without needing to load the remaining systems. The system also includes corresponding connection procedures, a subscriber telephone set and a method of registration in the network.

Registration and connection in a communication network

Authorization for a user to use a service is provided by a modified pager which calculates a unique response code to a transmitted challenge code based on the challenge code, an input personal identification number, and an internal key. The response code is input to a simple terminal, such as a telephone and if the unique response code is acceptable, the user may access the desired service, such as cashless transactions or long distance phone service.

User authentication method and apparatus

A cellular radio communications system maintains a prioritized routing list of several telephone numbers associated with a predetermined subscriber for efficiently establishing a communications link between a calling party and the subscriber. The telephone numbers of the several telephones associated with the subscriber are initially assigned relative priorities such that the telephones are sequentially alerted according to the prioritized routing lists of telephone numbers when a telephone call is placed to the subscriber. The prioritized routing list is subsequently reordered such that the telephone number from which the telephone from which the subscriber responded to the prior alert is assigned the highest priority will be initially alerted in response to the next telephone call placed to the subscriber.

Systems and methods for prioritized routing of telephone calls to a

A cellular radio communications system includes a cellular radio network for establishing communications, via a communications link such as a voice channel, with a cellular terminal and open communications link maintaining means for maintaining the communications link in an open state for a predetermined time period following termination of the communications with the cellular terminal. Accordingly, the user of the cellular terminal may continue to access the cellular radio network within the predetermined time period via the open communications link or voice channel. The cellular radio communications system may also include a feature node for providing predetermined functions to the cellular terminals associated with the cellular radio network. The open communications link maintaining means typically includes a timer and related controller for initiating and monitoring the predetermined time period. In addition, either the cellular terminals, themselves, or a feature node associated with the cellular radio network may include the communications link maintaining means.

Method and apparatus of maintaining an open communications channel

A cellular telephone includes a speaker, a microphone and voice channel establishing components for opening a voice channel between the cellular telephone and a source telephone requesting communications with the cellular telephone without opening the speaker and microphone. Thus, voice communications between the cellular telephone and the source telephone are prevented until a predetermined signal from the user of the cellular telephone is received. The cellular telephone also include delayed speaker and microphone connecting components for receiving and processing data from the source telephone without opening the speaker and the microphone. The data may include the identity of the source telephone or a message which may be displayed for the user of the cellular telephone. Based upon the identity of the source telephone, the user of the cellular telephone may selectively ignore or respond to the request for communications, or may route the request to an automated answering device or another telephone.

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Stockholm, Sweden

Johan Per Falk