Abstract: The present disclosure refers to methods and systems to reduce delays in VoWI-FI handover and packet switching registration. The method includes triggering a Router Solicitation Router Advertisement (RSRA) procedure to establish a Transmission Control Protocol/Internet Protocol (TCP/IP) interface based on a determination that the VoWi-Fi handover of a user equipment (UE) is to be performed, determining if a router advertisement (RA) is received within a first time interval, and obtaining a full Internet Protocol version 6 (IPv6) address previously used by the UE in response to determining that the RA is not received within the first time interval, the full IPv6 address being for establishing the TCP/IP interface with a network.

Abstract: A user log information output system includes a first user device configured to generate first user information by encrypting a unique identification (ID) of a first user according to a scheduled time; a first user server configured to generate first server information including a server group code of a hierarchical server group; a second user device configured to receive real-time token information through communication with the first user device, the real-time token information being generated based on the first user information and the first server information; and a second user server configured to generate proximity log information regarding the first user by reading the first user information and the first server information of the real-time token information received from the real-time token information from the second user device.

Abstract: An apparatus and method are provided for receiving information related to an instant message (IM) transmitted from another electronic device through a Short Message Service (SMS) network and transmitting information related to message reception through the SMS network. An electronic device includes a reception unit for receiving a first message through a first network, a generation unit for generating a second message including information related to reception of the first message, and a transmission unit for transmitting the second message through the first network. The first message includes information associated with an IM transmitted from the another electronic device through a second network.

Abstract: An apparatus and method are provided for receiving information related to an instant message (IM) transmitted from another electronic device through a Short Message Service (SMS) network and transmitting information related to message reception through the SMS network. An electronic device includes a reception unit for receiving a first message through a first network, a generation unit for generating a second message including information related to reception of the first message, and a transmission unit for transmitting the second message through the first network. The first message includes information associated with an IM transmitted from the another electronic device through a second network.

Abstract: A mobile terminal and controlling method thereof are disclosed. The present invention includes displaying an e-book content on a touchscreen, determining whether a touch lock prerequisite for setting the touchscreen to a touch lock mode is met, and if the touch lock prerequisite is met, setting the touchscreen to the touch lock mode. If the touchscreen is set to the touch lock mode, the touchscreen maintains a locked status for a touch action except a specifically provided touch action. And, the touchscreen set to the touch lock mode is set to display the e-book content.

Abstract: A mobile terminal and controlling method thereof are disclosed. The present invention includes displaying an e-book content on a touchscreen, determining whether a touch lock prerequisite for setting the touchscreen to a touch lock mode is met, and if the touch lock prerequisite is met, setting the touchscreen to the touch lock mode. If the touchscreen is set to the touch lock mode, the touchscreen maintains a locked status for a touch action except a specifically provided touch action. And, the touchscreen set to the touch lock mode is set to display the e-book content.