Mobile communication terminal with wireless lan and its connecting method

The present invention to a public network via the mobile communication module and the wireless LAN instant messaging module is provided through the mobile communication network drive, if the wireless LAN connectable wireless LAN relates to a mobile communication device and connection method that is provided with a wireless LAN directly because the use of the instant messaging service by being configured to be, a separate fees via direct connection to a public network without the mobile communication network in accordance with the mobile communication network used to enable the use of instant messaging is imposed communication Rates are reducing, there is an effect, the user's convenience is improved. IM, WLAN handover, Hand over, the mobile communication terminal, UMA