Based on a proposed method, the UE can initiate a certain timer in order not to allow non-emergency calls when warning notification is given in a certain area. In particular, the UE can receive a paging message including warning indication from a network, and starting a delay timer upon receiving the paging message if the UE belongs to a delay-tolerant category. The UE performs a random access procedure after the delay timer is expired. Namely, the UE that receives the paging message for warning, such as the ETWS and CMAS, immediately check whether it belongs to a certain category proposed by this document to trigger a delay timer to wait for a certain period of time until it attempt the call initiation procedure.