The present invention proposes enhancing the access path selection process by storing the relevant frequency distribution and the host variables values used for selecting the access path together with the corresponding access path executable. A comparison value is calculated for each allowable value of the specific symbol by subtracting a predicted signal value of the specific value from the distortion-removed waveform. By virtue of the voltage measurement circuit, the effect of different offset voltage values on the measured voltage is minimized. Accordingly, transmission resources available on the subscriber side can be assigned as needed, regardless of the type of service currently being requested, and can subsequently be released again. A cladding section is arranged around the core region. The inner and outer layers are comprised predominately of textile fibers which have inherent or additive flame resistant properties, and the middle layer is comprised substantially entirely of textile fibers without inherent or additive flame resistant properties.