Abstract: The invention concerns a method for the realization of a service for an automatic transmission of packet data to a subscriber of a communication network which comprises a packet data network, in particular, an Internet information service, the packet data to be transmitted being stored in a network facility of the communication network and being transmitted via the packet data network, wherein, if the communication network also comprises a circuit-switching telephone network, a telephone call of a first subscriber to a further subscriber causes the network facility to transmit packet data to one of the subscribers, as well as a communication network, an information computer and a program module for it.

Abstract: A switching network for switching data in the form of cells transmitted in asynchronous transfer mode is of the "multiple path, cell auto-routing and directed sub-connection" type. Detectors are provided at each output port of the switching network to detect the absence of a missing cell in a call using that output. Incident registers store in response thereto an incident indication signifying that a cell is missing and indicating the path that the missing cell must have taken from path data derived from another cell of the same call.