A method is provided for mounting a mobile communications device (404) on a substrate. In accordance with the method, a holder (401) is provided which includes (a) a back wall (407) having attaching means thereon for releasably attaching the holder to a substrate, and (b) a front wall (405) opposing said back wall. The holder is releasably mounted on an interior surface of a vehicle. The front wall has a sloped profile which extends a distance d1 from said bottom wall along said first edge as measured along a first axis perpendicular to said bottom wall and parallel to said front wall, and which extends a distance d2 from said bottom wall along said second edge as measured along a second axis perpendicular to said bottom wall and parallel to said front wall, and wherein d1