Cellular phone with automatic call reestablishment

A cellular phone which, when a communication channel is disconnected because of deterioration of field strength while a call is in progress, waits for recovery of the field strength and reinitiates a call, the cellular phone comprising:

• telephone number storage means for storing a telephone number of a called party when originating a call or storing a telephone number of a calling party when receiving an incoming call;
• call reestablishment processing means for automatically reinitiating a call by dialing the telephone number stored in the telephone number storage means;
• and
• notification means for notifying the user that the telephone number of the calling party was not received when the incoming call was received from the calling party.

A cellular phone which, when a communication channel is disconnected because of deterioration of field strength while a call is in progress, waits for recovery of the field strength and reinitiates a call, the cellular phone comprising:

• telephone number storage means for storing a telephone number of a called party when originating a call or storing a telephone number of a calling party when receiving an incoming call;
• call reestablishment processing means for reinitiating a call by dialing the telephone number stored in the telephone number storage means;
• call reestablishment notification means for notifying the user of call reestablishment before a call is reinitiated;
• and
• call reestablishment control means for selectively causing the call reestablishment processing means to reinitiate a call, said call reestablishment control means being operable, when the user instructs the call reestablishment control means to reestablish the call, to cause the call reestablishment processing means to reinitiate a call and, when the user fails to instruct the call reestablishment control means to reestablish the call, to cause the call reestablishment processing means to abort call reestablishment.

A cellular phone which, when a communication channel is disconnected because of deterioration of field strength while a call is in progress, waits for recovery of the field strength and reinitiates a call, the cellular phone comprising:

• telephone number storage means for storing a telephone number of a called party when originating a call or storing a telephone number of a calling party when receiving an incoming call;
• call reestablishment processing means for automatically reinitiating a call by dialing the telephone number stored in the telephone number storage means;
• timer means for measuring the time that elapses from disconnection of the communication channel;
• call reestablishment abort means for causing the call reestablishment processing means to abort call reestablishment when the field strength does not recover to its original state within a given period of time;
• and
• abort-time-up notification means for notifying the user of abortion of call reestablishment when call reestablishment is aborted.

A cellular phone which, when a communication channel is disconnected because of deterioration of field strength while a call is in progress, waits for recovery of the field strength and reinitiates a call, the cellular phone comprising:

• telephone number storage means for storing a telephone number of a called party when originating a call or storing a telephone number of a calling party when receiving an incoming call;
• call reestablishment processing means for automatically reinitiating a call by dialing the telephone number stored in the telephone number storage means;
• timer means for measuring the time that elapses from disconnection of the communication channel;
• wherein
• the timer means continues measuring the time that lapses from when the communication channel is disconnected even during the period of time over which power to the main body of the cellular phone is shut off;
• and
• call reestablishment abort means for causing the call reestablishment processing means to abort call reestablishment when the field strength does not recover to its original state within a given period of time.