Cellular telecommunications services, namely, transmission of voice, audio, data, text, images, video, music, information, facsimiles, advertising, gaming and graphics via cellular telecommunications networks and the Internet; cellular telecommunications services, namely, two-way real-time transmission of voice, audio, video and data between wireless telecommunications devices; wireless telephone telecommunications services, namely, providing wireless calling plans; text messaging and electronic multimedia messaging services; providing multiple-user access to a global computer network; providing technical support regarding the usage of cellular telecommunications equipment; wireless roaming services, namely, providing access to a cellular telecommunication network; electronic mail services; telephone communication services, namely, ringback tone services