Methods and systems which identify and interact with network interfaces based on the network to which they provide access. The voltage vector and the mutual immittance use a wave voltage of the wave source as a unit voltage. The metallic layer is scored only within the second width of the metal layer with resultant discrete metallic elements such than when the first tape layer is stretched, the discrete metallic elements are separated each by a gap creating the discontinuous shielding tape, where the two metallic free strips are configured to maintain integrity of the first tape layer. Consequently, even when a reduction in fixing temperature within the allowable temperature range is caused in the fixing unit in the case of continuously outputting color images at a high speed, the resulting change in tint of output images can be reduced. In addition, a plurality of tokens may be used when there are more than two terminals in a call.