Patent ID: 7171233

Claim:
A method of selecting a network between telecommunication networks for two terminals capable of exchanging data in a first frequency band of a first telecommunication network with subscription and in a second frequency band of a second telecommunication network without subscription, comprising: estimating a distance between the two terminals; and switching an operation frequency of each of the two terminals from the first frequency band to the second frequency band if the distance between the two terminals is smaller than a predetermined value, wherein the estimating of the distance between the two terminals comprises: receiving from one of the telecommunication networks, by a first one of the two terminals, its own geographical position P A and a geographical position P B of the second one of the two terminals determined by one of the telecommunication networks; and calculating, by the first one of the two terminals, the distance that separates the first one of the two terminals from the second one of the two terminals from the geographical positions P A and the geographical position P B .