A ringtone system is provided to a called party that wishes to have a particular ringtone annunciated for each of several types of calls from calling parties. The data originating from a transmitter is transmitted to the pay television terminal via a transmission medium with the application of mobile data carriers, especially chipcards. The first and second conduits are in a spaced relationship and are not rigidly coupled to one another for isolating a vibration or movement respectively therein. The fiber may be made by drawing a preform into a fiber, while applying gas pressure to the microstructured region. Other methods and apparatuses are also described.