Disclosed are compounds of Formula, including all geometric and stereoisomers, N-oxides, and salts thereof, Formula : wherein A1, A2, A3, A4, A5 and A6 are independently, selected from the group consisting of CR3 and N; provided that at most 3 of A1, A2, A3; A4, A5 and A6 is N; B1, B2 and B3 are independently selected from the group consisting of CR2. An output voltage is supplied to a network and is measured at a control panel. The techniques give a calling party a chance to provide information to the called party in the form of a voice recording in described circumstances, such as where caller identification information is unavailable if there is an unlisted phone number of a calling party. The tubing set contains a fluid reservoir, accommodates the positive displacement pump, and includes a heat exchanger for heating blood or fluid. This invention increases the speed and efficiency of the procedure by reducing energy loss due to reflection from the skin surface. An output frequency of the mixed mode controlled oscillator is controlled by the current signal and the digital code signal.