Mobile unit with speed dialing feature for cellular telephone network

Claim 2

A mobile telephone for a cellular telephone network, comprising: a numeric keypad; a speed dialing memory; a current location memory; read/write means connected to said numeric keypad and to said speed dialing memory and current location memory to respond to digits entered through the keypad for storing destination address numbers into said speed dialing memory, each of the destination address numbers containing a country code, a toll area code and a telephone number, said destination address numbers being respectively identified by corresponding speed dialing codes, for storing an indication of a current location of said mobile telephone into said current location memory, and for retrieving a destination address number from said speed dialing memory in response to a corresponding speed dialing code entered through said keypad when a call is originated; an access code memory storing a plurality of international access codes respectively identified by corresponding country codes; control means for making a first decision that said originated call is an international call or a second decision that said call is a domestic call depending on whether the country code of the retrieved destination address number corresponds to the indication stored in the current location memory, retrieving an international access code from said access code memory corresponding to the indication stored in said current location memory in response to said first decision, updating the retrieved destination address number by appending thereto the retrieved international access code, and updating the retrieved destination address number by replacing the country code thereof with a digit "0" in response to said second decision; and means for transmitting the updated destination address number to a base station of the cellular telephone network.

Claim 3

A mobile telephone as claimed in claim 1, wherein said indication stored in the current location memory is a country code, said control means including means for comparing the country code stored in said current location memory with the country code of said retrieved destination address number to make said first decision if there is a mismatch between said compared country codes and makes said second decision if there is a match between said compared country codes.

Claim 4

A mobile telephone as claimed in claim 1 or 2, further comprising a country identification memory, wherein said indication stored in the current location memory is a user defined country identifier, and said read/write means includes means for storing a plurality of country codes identified respectively by corresponding country identifiers, said control means including means for retrieving a country code from said country identification memory corresponding to the country identifier stored in said current location memory and comparing the retrieved country code with the country code of said retrieved destination address number to make said first decision if there is a mismatch between said compared country codes and makes said second decision if there is a match between said compared country codes.

Claim 5

In a mobile telephone for a cellular telephone network, the telephone comprising a numeric keypad, a speed dialing memory, and a current location memory, said speed dialing memory storing a plurality of destination address numbers each containing a country code, a toll area code and a telephone number, said destination address numbers being respectively identified by corresponding speed dialing codes, a method for making an international or domestic call comprising the steps of: a) storing a plurality of international access codes respectively identified by corresponding country codes in an access code memory; b) storing an indication of a current location of said mobile telephone into said current location memory; c) retrieving a destination address number from said speed dialing memory in response to a corresponding speed dialing code entered through said keypad when a call is originated; d) comparing the country code of the destination address number retrieved by the step (c) with the indication stored in said current location memory to detect a match or a mismatch therebetween; e) making a first decision that said originated call is an international call if a mismatch is detected by the step (d) and making a second decision that said originated call is a domestic call if a match is detected by the step (d); f) in response to the first decision, retrieving an international access code from said access code memory corresponding to the indication stored in said current location memory and updating the retrieved destination address number by appending thereto the retrieved international access code; g) in response to the second decision, updating the retrieved destination address number by replacing the country code thereof with a digit "0"; and h) transmitting the updated destination address number to a base station of the cellular telephone network.

Claim 6

In a mobile telephone for a cellular telephone network, the telephone comprising a numeric keypad, a speed dialing memory, and a current location memory, said speed dialing memory storing a plurality of destination address numbers each containing a country code, a toll area code and a telephone number, said destination address numbers being respectively identified by corresponding speed dialing codes, a method for making an international or domestic call comprising the steps of: a) storing a plurality of international access codes respectively identified by corresponding country codes in an access code memory; b) storing an indication of a current location of said mobile telephone into said current location memory; c) retrieving a destination address number from said speed dialing memory in response to a corresponding speed dialing code entered through said keypad when a call is originated; d) comparing the country code of the destination address number retrieved by the step (c) with the indication stored in said current location memory to detect a match or a mismatch therebetween; e) making a first decision that said originated call is an international call if a mismatch is detected by the step (d) and making a second decision that said originated call is a domestic call if a match is detected by the step (d); f) in response to the first decision, retrieving an international access code from said access code memory corresponding to the indication stored in said current location memory and updating the retrieved destination address number by appending thereto the retrieved international access code; g) in response to the second decision, updating the retrieved destination address number by replacing the country code thereof with a digit "0"; and h) transmitting the updated destination address number to a base station of the cellular telephone network.