An approach is provided for conducting transactions via an audio token base payment system. The pillow may have a sloped a sloping partition enclosing stuffing and located inside a pillow casing where the head of a user is rested, the sloped partition extending from the top cloth to the bottom cloth. The call handling can depend on whether the call is local or non-local, which is affected by the location of the cellular telephone. This process of sampling a PWM cycle of the input PWM signal and generating the output PWM signals based on the PWM parameters resulting from the sampling process can be repeated for one or more iterations. A lower end of a separator, which interconnects a main housing with an exhaust cover, is positioned above each seat portion of each rib.