Computer software namely for telephony availability service management, for "One Click" telephony services, for receiving of data and automatic switching and forwarding, publishing and viewing telephony related availability information, for use in database management, for messaging and data transmission; computer operating programs; computers; pre-recorded CD-ROMS and diskettes featuring a system for telephony tracking and messaging; data processing apparatus, namely, personal computers and PDAs; facsimile machines; communication apparatuses namely telephone devices, wireless devices, internet appliances, modems and computer devices, namely, network computers, personal computers, cellular phones, wireless PDAs and pagers featuring a system for telephony tracking and messaging; software for generating Graphic User Interface; telephone apparatus; telephone receivers; telephone transmitters

Telephony services, namely, making phone calls, returning phone calls and leaving messages; telephony use and availability services also via a voice and data network; service for allowing people to communicate via a voice and data networks; cellular telephone communication; voice telephone communication; data telephone communication; communications by computers; fiber optic telephone communication; computer aided transmission of telephone calls; electronic mail and messaging services; facsimile transmission; message sending via data and PSTN networks, namely, Internet and other telephony networks, message sending via Short Messaging System (SMS), from and to network computers, personal computers, cellular phones, internet appliances, wireless PDAs and pagers; paging services by radio, telephone, cellular or other means; satellite transmission; transmission of messages and images by computer aided devices, namely network computers, personal computers, cellular phones, internet appliances, wireless PDAs and pagers, also concerning the availability of users and subscribers; One Click telephony services namely calling contacts, returning calls to contacts and requesting notification when one or more contacts become available by parking messages