Patent ID: 7610039

Claim:
An equipment identity coding method of a mobile terminal comprising: receiving an equipment identity input from a terminal; determining if a first security code is stored in the mobile terminal when the equipment identity input is received from the terminal; generating a security code when the equipment identity input command is received if the first security code is not stored in the mobile terminal; transmitting the security code to the terminal; coding the equipment identity and the security code in the mobile terminal; storing the coded equipment identity and the coded security code in the mobile terminal; receiving a second input command comprising a second equipment identity and a second security code from a second terminal; comparing the security code with the second security code when the second input command is received; generating a third security code if the security code and second security code match; transmitting the third security code to the second terminal; coding the second equipment identity and the third security code; and storing the second equipment identity and the third security code in the mobile terminal, wherein the equipment identity is changed to the second equipment identity, wherein the equipment identity and second equipment identity comprises an International Mobile Equipment Identifier (IMEI) for a Global System for Mobile Communications (GSM) user equipment (UE).