Apparatus and method for using a telephone while navigating

A navigation device comprising:

• a map database storing map data;
• a telephone number database storing plural telephone numbers and corresponding location information;
• a telephone transceiver;
• a processor identifying the source telephone number of a telephone call incoming to said transceiver;
• a processor using said map database and said telephone number database to identify location information corresponding to said identified telephone number;
• and
• a device showing said identified telephone number and location information corresponding to said identified telephone number.

A method for using a telephone in a mobile environment, said method comprising:

• storing map data in a map database;
• storing plural telephone numbers and corresponding location information in a telephone database;
• obtaining the area code of a current position using said map database;
• identifying telephone numbers stored in said telephone number database based on said obtained area code, said identifying step occurring if said obtained area code is different from a previously obtained area code;
• and
• showing said identified telephone numbers and showing location information corresponding to said identified telephone numbers, wherein
• the step of showing further shows location information corresponding to said identified telephone numbers by using a symbol representing each said identified telephone number and placing the symbols at the correct latitude and longitude on a display map.

A method for using a telephone in a mobile environment, said method comprising:

• storing map data in a map database;
• storing plural telephone numbers and corresponding location information in a telephone database;
• identifying the source telephone number of a telephone call incoming to said telephone;
• using said map database and said telephone number database to identify location information corresponding to said identified telephone number;
• and
• showing said identified telephone number and showing location information corresponding to said identified telephone number.