Cellular telecommunications services, namely, transmission of voice, audio, data, text, images, video, music, information, 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; cellular telephone telecommunications services, namely, providing cellular calling plans; text messaging services; multimedia messaging services; providing multiple-user access to a global computer network; providing technical support regarding the usage of cellular telecommunications services and equipment; wireless roaming services, namely, providing access to a cellular telecommunication network; electronic mail services; ringback tone services; electronic voice messaging services, namely, recording and subsequent transmission of audio messages and transmitting textual transcriptions of audio messages