Method for making available an access resource managed by a first operator to a second operator

A method for temporarily making available an access resource of a local area network of a client of a first operator to at least one second operator. The local area network is connected to a communication infrastructure of the first operator. The method is implemented by a configuration entity of the first operator and includes: transmitting an offer message, containing at least one item of service data, offering to make the at least one access resource available, to the at least one second operator; receiving a request message requesting the at least one access resource be made available, created by a management equipment of the at least one second operator from the received at least one item of data; and transmitting a configuration message for configuring at least one parameter of the at least one access resource, triggered following the received request message.