U.S. Philips Corporation

Cornelis M Klik

Piet B Hesdahl

Sijtze Van Der Velde

Gijsbertus M Besselsen

A digital telephone communication system, for example ISDN or ESPABX, having an exchange and a plurality of user stations, the exchange communicating with each user station by at least a signalling (D) channel and a communication (B) channel of greater bandwidth. A service station is connected to the exchange in which is stored programming information for the user stations. Each user station includes a processor in which the telephone directory number of the service station is stored. Programming information available at the service station can be obtained by the processor of a user station by calling the service station, and is transmitted from the service station over the B channel. The service station may also provide unrequested programming information to any or all of the user stations over the B channels.

Digital telephone communication system including an exchange and a

A method of establishing a data link between a first terminal, which is capable of communicating in accordance with a number of different data communication standards, and a plurality of further terminals which are each capable of communicating in accordance with a single data communication standard, whilst indicators (profile indicators) are extended to the dial numbers of the further terminals in the first terminal these indicators showing according to which data communication standard a specific further terminal is operating. If such an indicator is found with the telephone number when a link to a further terminal is established, the first terminal is automatically reprogrammed for subsequent operation in accordance with the data communication standard of the further terminal. The method can also be implemented when a terminal which is capable of communicating in accordance with a single data communication standard calls the first terminal, provided that the calling terminal transmits its call accompanied by its telephone number. Also a terminal for implementing the method.

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Hilversum, Netherlands

Cornelis M Klik