A method for a network (100) with cells of first and a second kind with corresponding base stations. The network (100) comprises functions for control of the base stations of the first and second kinds and for handing over control of user terminals between base stations, the method being used when a user terminal (123) in a cell of the second kind (120-122) is handed over to a base station (111) of a cell (110) of the first kind. The method lets said control function (140) of the base station of the cell of the first kind send instructions to the control function (140) of the base station (111) of the second kind regarding at least one or more frequencies on which the base station of the second kind may operate, or an identity code which may be used by the base station of the second kind.