Abstract: Method for data communication in a mobile telephone system with a mobile telephone (1) provided with a function via which data roaming can be switched off. When a user does not wish to use his or her operator with which the user has a subscription, called the first operator (2), the function via which data roaming can be switched off is activated, and a subscription for data communication only is caused to be set up with a second operator (3).

Abstract: Method for sending advertisement over the Internet, including a main computer system having a central computer and recorded advertisement videos, includes inputting a profile into the central computer for each user wishing to see advertisement, which profile is constituted by the user's replies to specific questions, inputting a categorization of each recorded video into the central computer, which categorization is constituted by one or several choices from a number of predefined options giving information about to whom the advertisement is directed and/or what each respective video is advertising, storing the videos in the central computer or on the Internet, and when a user of a portable personal electronic device requests access to a wireless network connected to the Internet and central computer, causing the central computer to send an offer to the portable device that the user can connect to the wireless network at no charge.

Abstract: A method relating to telecommunications in which the telephone of a first subscriber is connected to the telephone of a second subscriber via a standard telephone network and the call is billed to a third subscriber. The first subscriber first dials a subscriber number, preferably preceded by a prefix, which leads to the third subscriber and then dials a subscriber number that leads to the second subscriber. The telephone network connects the call to a telephone-network-connected computer unit that forwards the call to the second subscriber to connect the first subscriber with the second subscriber. The call between the first subscriber and the second subscriber is billed to the third subscriber, and advertisements are transmitted on the call connected between the first and second subscribers.

Abstract: A method and apparatus for forwarding and billing a telephone call, wherein a first subscriber telephone is connected to a second subscriber telephone via a standard telephone network and a third subscriber is billed for the call. The first subscriber dials a prefix followed by a subscriber number which leads to the third subscriber and also dials a subscriber number which leads to the second subscriber. The prefix causes the telephone network to connect the call via the telephone network to a computer unit that is associated with the third subscriber and that is connected to the telephone network. The prefix also causes the computer unit to forward the call to the second subscriber via the computer unit, to connect the first subscriber with the second subscriber. Detection of the prefix by the telephone network causes the network to bill the call between the first and the second subscriber to the subscription of the third subscriber.