APPARATUS AND METHOD FOR INTERWORKING BETWEEN WIRELESS NETWORK AND WIRELINE NETWORK

摘要

An interworking of a wireless network and a wireline network is provided. A call setup method of a network apparatus in an IP Multimedia Subsystem (IMS) network includes setting a call between a first terminal of a first IMS network and a second terminal of a second IMS network; determining whether a protocol conversion is needed between the first terminal and the second terminal in the setting operation; and performing the protocol conversion when the protocol conversion is needed.