Patent ID: 8010610

Claim:
A method of facilitating the entry of information for a contact to be stored by an address book application of a handheld electronic device, the method comprising: providing on a display of said handheld electronic device, a contact data entry screen having a plurality of fields for receiving data to be stored by said address book application in association with said contact; receiving at the handheld electronic device while it is in an alphanumeric entry mode first information in a first one of said fields of said contact data entry screen; determining whether said first information includes a “P” and an “O” characters; if it is determined that said first information includes a “P” and an “O” characters, then automatically: entering a text string “P.O. Box” or a derivative of the text string “P.O. Box”, in said first one of said fields; placing a cursor after the text string; and shifting the handheld electronic device from the alphanumeric entry mode to a numeric entry mode for manual entry of a post office box number in said first one of said fields.