Mobile telephone having a redial function relating multiple redial numbers to a selected redial number and redial method therefor

1. A mobile telephone device having a redial function, comprising:

a display device;

an input device for inputting a desired instruction;

a first memory for retrievably storing a plurality of registered phone numbers related to a plurality of registered names;

a second memory for storing a plurality of redial phone numbers which have been dialed; and

a controller for controlling such that a registered phone number related to a selected redial phone number is displayed on the display device to be redial ed depending on an instruction input through the input device wherein said controller is further adapted to retrieve a plurality of redial phone numbers from said first and second memory, said phone numbers being related to said registered phone numbers for sequential dialing, until a connection is made.

2. A mobile telephone according to claim 1 , wherein the controller controls such that:

one of the redial phone numbers stored in the second memory is sequentially selected and displayed on the display device to be redial ed depending on a first selection instruction; and

a registered phone number related to a selected redial phone number is selected and displayed on the display device to be redial ed depending on a second selection instruction,

wherein the first and second selection instructions are input through the input device.

3. A mobile telephone according to claim 2 , wherein the controller selects a registered phone number related to the selected redial phone number from the first memory in predetermined order.

4. A mobile telephone according to claim 2 , wherein the input device comprises:

a first redial key for producing the first selection instruction; and

a second redial key for producing the second selection instruction.

5. A mobile telephone according to claim 2 , wherein the input device comprises a single redial key, wherein the controller discriminates between the first selection instruction and the second instruction based on a length of time that the single redial key is depressed.

6. A mobile telephone according to claim 1 , wherein the controller displays a number of registered phone numbers related to the selected redial phone number on the display device.

7. A mobile telephone according to claim 1 , wherein the controller stores both successful and unsuccessful phone numbers onto the second memory while automatically deleting an oldest phone number when the second memory is full.

8. A mobile telephone according to claim 1 , wherein the controller stores successful phone numbers and only a last-dialed phone number of unsuccessful phone numbers onto the second memory while automatically deleting an oldest phone number when the second memory is full.

9. A method for redialing a phone number in a mobile telephone having a redial function, comprising the steps of:

a) retrievably storing a plurality of registered phone numbers related to a plurality of registered names in a phone directory memory;

b) storing a plurality of redial phone numbers which have been dialed in a redial number memory;

c) selecting one of the redial phone numbers stored in the redial number memory;

d) retrieving a plurality of registered phone numbers related to a said selected redial number from the phone directory memory; and

e) redialing a selected one of the retrieved registered phone numbers depending on a calling instruction, further comprising the step of:

f) repeating the step e) while sequentially selecting the retrieved registered phone numbers until a connection is made.

10. A method according to claim 9 , wherein the registered phone numbers are sequentially selected in predetermined order.