Programmable messages for communication system having one-button user interface

1. A method of operating a communication system comprising:

generating a message inquiry signal from a mobile unit;

sending the message inquiry signal to a base station to determine if updated command messages are available from the base station;

when updated command messages are available, transmitting the updated command messages from the base station to the mobile unit in response to the message inquiry signal received by the base station from the mobile unit;

selecting a command message from the updated command messages; and

transmitting the command message from the mobile unit.

2. A method as recited in claim 1 wherein the mobile unit is handheld.

3. A method as recited in claim 1 wherein the mobile unit is vehicle-based.

4. A method as recited in claim 1 further comprising storing the updated command messages in a memory.

5. A method as recited in claim 1 further comprising applying power to a mobile unit microcontroller and generating the message inquiry signal in response to applying power.

6. A method as recited in claim 5 wherein prior to applying power to the mobile unit controller, assembling the mobile unit; and storing command messages in a memory.

7. A method of operating a communication system comprising:

storing a first set of command messages into a memory of a mobile unit;

applying power to a mobile unit controller; sending an inquiry signal to a base station from the mobile unit to determine if updated command message are available from the base station;

when updated command messages are available receiving the updated command messages to form a second set of command messages;

selecting a command message from the second set of command messages; and transmitting the command message from the mobile unit to the base station.

8. A method as recited in claim 7 wherein the mobile unit is handheld.

9. A method as recited in claim 7 wherein the mobile unit is vehicle-based.

10. A method as recited in claim 7 further comprising storing the updated command messages in a memory.

11. A method as recited in claim 7 further comprising applying power to a mobile unit microcontroller and generating the message inquiry signal in response to applying power.

12. A method as recited in claim 7 wherein prior to applying power to the mobile unit controller, assembling the mobile unit; and storing command messages in a memory.

13. A system comprising:

a mobile unit having a memory therein, said memory storing command messages therein, said mobile unit further comprising a wireless modem for transmitting message signals and receiving message signals, said mobile unit having a power source, said mobile unit generating a message inquiry signal;

a base station having a master wireless modem transmitting updated command messages in response to the message inquiry signal;

said mobile unit storing the updated command messages therein and selecting a selected command message from the updated command messages and communicating the selected command message from the mobile unit to the base station.

14. A system as recited in claim 13 wherein said mobile unit receives the updated command messages and stores them in said memory.

15. A system as recited in claim 13 wherein said mobile unit comprises a text display, said mobile unit controls the text display in response to the updated command messages.

16. A system as recited in claim 13 wherein the mobile unit is handheld.

17. A system as recited in claim 13 wherein the mobile unit is vehicle-based.