A system and method of processing calls in a telephone network having advanced intelligent network capabilities is provided. A printed circuit board on the base portion extends in the longitudinal direction within the channel. An extension member having an end attached to the first bristle carrier and extending outwardly therefrom and at least partially into the second bristle field is also provided on the brush section whereby the extension moves upon movement of the first bristle carrier in the first path of motion to move the second bristle field in a second path of motion. The terminal base is provided with a depression to be fitted to the flange portion of the terminal rod, a seal portion having a diameter reduced from the depression, and a through portion passing from the seal portion through to the exterior of the motor casing. The sum of the tip radii of the intermediate gear for the reverse gear and of the main shaft gear for the first gear is smaller than the axial separation between the main shaft and the intermediate shaft.