Telecommunications services, namely, providing access to mobile telephone networks; electronic transmission of voice, data, images, audio, video and documents via mobile communication devices and global computer networks; uploading and downloading of ring tones, graphic icons, screensavers, games, music and audio and video files for mobile communication devices and global computer networks; wireless and cellular voice and data messaging and paging services; electronic mail services; personal communications services; instant messaging services; electronic voice messaging, namely the recording and subsequent transmission of voice messages by and to mobile communication devices; wireless roaming services; providing on-line chat rooms and on-line bulletin boards for transmission of messages among computer users concerning various topics in the field of general interest; providing multiple user access to global computer networks