WIRELESS TELECOMMUNICATIONS HARDWARE, NAMELY, MOBILE SWITCHING CENTERS, HOME LOCATION REGISTERS, WIRELESS LOCAL LOOPS, INTERNET TELEPHONY HARDWARE, AND ACCESS TANDEM SWITCHES, AND SOFTWARE USED TO RUN MOBILE SWITCHING CENTERS, HOME LOCATION REGISTERS, WIRELESS LOCAL LOOPS, INTERNET TELEPHONY HARDWARE, AND ACCESS TANDEM SWITCHES; ENHANCED SERVICE COMPUTER HARDWARE USED TO PROVIDE PREPAID PHONE SERVICE AND VOICEMAIL, AND SOFTWARE FOR RUNNING SUCH HARDWARE