The present disclosure may provide a method of operating a terminal operating based on a plurality of networks in a wireless communication system. Herein, the method of operating the terminal may include: establishing a connection to a first network; receiving a paging message from a second network; transmitting, to the first network, a message for indicating temporary suspension of data communication with the first network; and transitioning to the second network. Herein, the message for indicating the temporary suspension of data communication with the first network may include paging-related information of the first network, and when the terminal receives a paging message from the first network after transitioning to the second network, the terminal may determine whether or not to transition to the first network.