A method of determining the availability of at least one of a plurality of different services in a wireless communication network comprising at least a first station and a second station which are in communication has the following steps. The diffusing portion is disposed parallel to the linear light source and has a grooved diffusion surface facing the linear light source adapted to reflect light from the linear light source toward the light guide portions. The connections are established by configuring, in various of the nodes, mappings for forwarding data frames, such as Ethernet frames. An external surface provides a surface for advertising or other written information. Preferably, to provide structural integrity, the bench step is formed from a single sheet of metal, such as aluminum, with each element of the bench step being formed by means of a bend in the metal.