A secure communication link is provided between a movable barrier operator and a peripheral alarm system. The armrest comprises an armrest support member adapted to be coupled to the base, the armrest support member being movable in a linear direction between a first position and a second position. The side member also includes a decorative pattern, which shares a theme with an electronic image that can be displayed on the monitor. The parametric speakers and the drivers constitute at least two parametric speaker units each composed of respective one of the parametric speakers and respective one of the drivers. The present invention relates to a group 13 nitride phosphor consisting of group 13 nitride crystallites having a group 13 element dispersed in a matrix of a silica gel solid layer, with a diamine compound bonded to the surfaces of the group 13 nitride crystallites and the silica gel solid layer, and a method of preparing the same. A telephone number of a real mobile telephone is associated with a telephone number of a virtual mobile telephone owned by a virtual person corresponding to the owner of the real mobile telephone or the same telephone number is assigned to the telephones so as to link their exchange functions.