Telefonaktiebolaget Lm Ericsson (publ)

Bj&ouml;rn Jonsson

Per-Olof Nerbrant

Jan Ingemar Swerup

Krister T&ouml;rnqvist

The invention is concerned with a method in a telecommunications terminal, e.g. amobile phone, comprising an identification module with several subscriber numbers, of invoking desired services provided by different service providers. In the method a category of an incoming or outgoing call can be determined. A desired service is selected, in accordance with the category determined, among the services provided by a service provider associated with the mobile phone through service access numbers stored in the module. There is called to a service access number of the service provider providing a desired service in accordance with a certain call handling function by means of which the desired service can be invoked and charged in different ways, whereafter the service provided by the service provider is invoked. The invention is also concerned with a telecommunications terminal and the use of the terminal in different roles, such as a private person, an employee and as a member in different organizations.

Method and apparatus of invoking services in a telecommunications terminal

A digital input symbol is transmitted to a receiver by determining one or more formant frequencies that correspond to the digital input symbol. In one embodiment, a pre-programmed addressable memory is used to map the set of possible digital input symbols onto a set of corresponding speech units, each comprising a superposition of one or more formant frequencies. A signal is then generated having the speech units. The signal is supplied for transmission over a voice channel. This may include supplying the signal to a voice coder prior to transmission. In another aspect of the invention, a forward error correction code (FEC) is determined for the digital input symbol, and the one or more speech units are modified as a function of the forward error correction code. In this way, the FEC may also be transmitted with the encoded input symbol. The modification may affect any of a number of attributes of the speech units, including a volume attribute and a pitch attribute.

Embedded data in a coded voice channel

One or more unique identifiers are created which are associated directly with an upcoming telemeeting. For example, a unique identifier can be a preselected telephone number in a PSTN, or a URL that identifies an address on the World Wide Web. In one embodiment, a telemeeting is administered automatically under the control of a communications network's service node. Intended participants are invited to the meeting by including the unique identifier along with a notification message, such as, for example, in a facsimile message, e-mail message, page message, voice mail message, or bulletin board announcement. Using the unique identifier and suitable terminal equipment, any recipient of the notification message can call the telephone number (or click on the URL). In response to such a call, the service node generates and distributes to the recipient caller a personal reference, which is a unique telephone number (or URL address). The recipient caller then uses the personal reference to access and join the telemeeting via an appropriate node (e.g., to minimize calling distance, costs, etc.).

Growing community of inventors

Järfälla, Sweden

Björn Jonsson

Growing community of inventors

Järfälla, Sweden

Bj&ouml;rn Jonsson

Björn Jonsson