Disclosed is a method for determining identification information on a user of a user terminal including a subscription of a second network, wherein the user terminal is requesting access to a first network. In the method an access request message is received from an entity controlling at least pertly the access to the first network and an identification request message is delivered to the user terminal. The user terminal is configured to return an indication of identification and if the indication is positive, pre-agreed piece of information is retrieved from a location accessible to the server. The pre-agreed piece of information is delivered to the entity controlling the access to the first network in order to provide an access to the first network. Also disclosed is a server, a user terminal and a computer program product.