Patent ID: 7418262

Claim:
A method for storing a phone number in a mobile terminal adapted to store and manage country code information of various countries to allow a mutual roaming process among countries, mobile service registration information and mobile service usage history information of the mobile service subscriber comprising the steps of: a) reading an external entry phone number according to a phone number storage command; b) analyzing the phone number read at step (a) to determine whether the phone number has a country code; c) if the phone number has no country code at step (b), retrieving a country code of a current country wherein the mobile terminal is located on the basis of a mobile communication network ID of a current PLMN (Public Land Mobile Network) service; and d) storing the phone number read at step (a) and the country code retrieved at step (c) in the mobile terminal wherein step (d) separately stores a country code contained in the read phone number of step (a), a country code retrieved at step (c), and a phone number excluding country code.