For the purposes of this article, "wireless communications services" shall mean the provision of the following types of wireless services: telephone, personal communications, Internet and enhanced mobile radio service and paging. Such services, it is anticipated, will require installation of facilities, including, but not limited to, antennas, transmitters/receivers, supporting structures, principal and accessory equipment and, in some instances, towers, masts or other structures. These facilities may be sited only in the Wireless Communications Services Overlay District.