Abstract: A portable cellular phone system is provided, wherein matched sets of algorithmically generated communication units are generated, each defining an increment of authorized communication. One set is stored on a system server, i.e. a service provider, and the pre-paid set is available for use within a portable cellular phone. The portable cellular phone, which is normally non-activated, automatically contacts the system server upon selective activation by the user, to initiate a call (outgoing or incoming). A voice recognition system allows the user to place calls and/or receive calls. During a call, the portable cellular phone and the system server allow authorized access to communication, while the communication units are decremented at the system server and at the portable cellular phone.

Abstract: A portable cellular phone system is provided, wherein matched sets of algorithmically generated communication units are generated, each defining an increment of authorized communication. One set is stored on a system server, i.e. a service provider, and the pre-paid set is available for use within a portable cellular phone. The portable cellular phone, which is normally non-activated, automatically contacts the system server upon selective activation by the user, to initiate a call (outgoing or incoming). A voice recognition system allows the user to place calls and/or receive calls. During a call, the portable cellular phone and the system server allow authorized access to communication, while the communication units are decremented at the system server and at the portable cellular phone.

Abstract: A keyless portable cellular phone system is provided, wherein matched sets of algorithmically generated communication units are generated, each communication unit pair defining a discrete time increment of authorized communication. One set is stored on a system server (i.e. a service provider), and the pre-paid set is available for use within a keyless portable cellular phone. The phone, normally non-activated, automatically contacts the system server upon selective activation by the user, to initiate a call (outgoing or incoming). A voice recognition system allows the user to place calls and/or receive calls. During a call, the keyless portable cellular phone periodically sends the sequential discrete airtime communication units, having unique identifiers (i.e. encryption), whereby the system server allows pre-paid authorized access to time increments of system services, such as communication, based upon the receipt of the matching, uniquely identified, sequential discrete airtime communication units.