Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method for handling calls by a first User Equipment (UE) in a communication network, the method comprising: establishing a first call with a second UE, wherein the first call is one of a Circuit-Switched (CS) call and a Packet-Switched (PS) call; establishing a second call with a third UE while the first call is in an active state, wherein the second call is one of a CS call and a PS call; and merging the first call and the second call on the basis of a specific event.

Abstract: A method and system for providing local Emergency Number List (ENL) to a mobile device when mobile device fails to register with a network is disclosed. A mobile device obtains the ENL if it is determined that the mobile device has failed to register with the network. The mobile device obtains the ENL in a reject message. The mobile device can also obtain the local ENL when all the PLMNs in the mobile device are FPLMNs. The mobile device removes a PLMN from FPLMN list and performs a registration attempt with the removed PLMN and obtains the ENL in reject message. The mobile device obtains local ENL from network without a SIM/USIM. The mobile device sends a Connection Management (CM) service request along with CM service type as GET ENL to network. The mobile device obtains local ENL in CM service accept message from network.