19. The method of claim 15 , wherein the user's set of one or more databases comprises a contacts database with names of people and telephone numbers, wherein the change comprises a change in the contacts database, wherein the phonetic dictionary is for natural language speech recognition, and wherein the speech input is for calling a telephone number or sending a text message to another device.
19. The method of claim 15 , wherein the user's set of one or more databases comprises a contacts database with names of people and telephone numbers, wherein the change comprises a change in the contacts database, wherein the phonetic dictionary is for natural language speech recognition, and wherein the speech input is for calling a telephone number or sending a text message to another device. 20. The method of claim 19 , further comprising: obtaining the change in the contacts database in response to the change being made; and processing, using the set of one or more pronunciation guessers, the change in the contacts database to update the extended phonetic dictionary based on the change in the contacts database.