The present invention relates to cyanoisoquinoline compounds suitable for use in treating hypoxia inducible factor-mediated andor erythropoictin-associated conditions. Each handset comprises a wireless handset having a keyboard for allowing a user to input a response. A control module receives the position values and computes first and second normalized position values that represent a fraction of a range between minimum and maximum values of the first position value and between minimum and maximum values of the second position value. The rolling elements are circumferentially aligned at intervals between the inner race and the outer race. The line rate utilization is save for communication to one or more users. A drive unit causes the transfer roller to move towards the intermediate carrier as an ON position or away from the intermediate carrier as an OFF position, the drive unit being designed such that it is position-controlled when moving towards the ON position, and is torque controlled in the ON position.