A relay device for call processing according to an embodiment may include: a database; a protocol relay unit; a call processing unit for checking whether a sender and recipient of a call are subscribers stored in the database, on the basis of an income SIP signal through the protocol relay unit, and providing the income SIP signal to an external call routing server when the sender of the call is the subscriber and the recipient of the call is not the subscriber; and a packet processing unit for rearranging incoming call packets of the call according to the sequence of the call packets and adjusting transmission speed of the rearranged call packets according to the situation in which the call packets are incoming.

A relay device for call processing according to an embodiment may include: a database; a protocol relay unit; a call processing unit for checking whether a sender and recipient of a call are subscribers stored in the database, on the basis of an income SIP signal through the protocol relay unit, and providing the income SIP signal to an external call routing server when the sender of the call is the subscriber and the recipient of the call is not the subscriber; and a packet processing unit for rearranging incoming call packets of the call according to the sequence of the call packets and adjusting transmission speed of the rearranged call packets according to the situation in which the call packets are incoming.

A voice call method, device and system, the method including establishing, by a first device, a Bluetooth link to a second device, receiving, by the first device, call request information sent by a third device, sending the call request information to a second device through the Bluetooth link, sending, by the first device in response to an answer command from the second device, the answer command to the third device, establishing, by the first device, a call with the third device, sending a downlink audio signal received from the third device to the second device, or sending and uplink audio signal received from the second device to the third device, and converting, by the first device, in response to a sound channel switching command and receiving a downlink audio signal sent by the third device, the downlink audio signal into a sound signal, and playing the sound signal.

An SIP proxy server 1 includes a forking termination unit 21. The forking termination unit 21 is configured to: in response to receiving an Initial INVITE request message from a originating-side network 6, transmit the Initial INVITE request message to an incoming-side network 7, and in response to receiving an 18X response message at the first time from the incoming-side network, transmit the 18X response message received at the first time to the originating-side network 6. The forking termination unit 21 establishes Early dialog #0 between the SIP proxy server and the originating-side network 6 and establishes Early Dialog #1 that is compatible with an incoming-side terminal 3 that is a transmission source of an 18X response message received at the first time. In response to receiving 18X response message at the second time from the incoming-side network 7, the forking termination unit 21 establishes Early Dialog #2 that is compatible with the incoming-side terminal 3 that is a transmission source of the 18X response message received at the second time.

Methods and systems of establishing a shared augmented reality session between a first computing device and a second computing device are disclosed. The first and second computing devices perform proximity device discovery using a first data communication technology. The first and second computing devices then perform real-time network communication using a second data communication technology. Once the real-time network communication is established, the first and second computing devices perform coordinate space synchronization using the second data communication technology.

Disclosed herein is an integrated core network of 5G and ATSC 3.0. The integrated core network of 5G and ATSC 3.0 includes multiple control plane entities and a user plane entity, and further includes an ATSC 3.0 gateway, thereby enabling multimedia content transmitted from the ATSC 3.0 gateway to the user plane entity under the control of the control entity to be delivered to user equipment over an ATSC 3.0 terrestrial network. The ATSC 3.0 gateway may include an ATSC 3.0 Control Plane Gateway (CP-GW) connected between the user plane entity and the multiple control plane entities and an ATSC 3.0 User Plane Gateway (UP-GW) connected to the user plane entity.

When initiating a Voice-over-IP (VoIP) communication session between an originating device (MO) and a terminating device (MT) on a packet-switched network, network components associated with the MO may encounter a failure when preparing resources for the session, such as a failure to establish a dedicated bearer with the MO. This might typically cause the system to abort the session. Instead, the network components are configured to detect the failure and to initiate a handover to a circuit-switched communication network so that the session may be conducted through the circuit-switched communication network. The failure may be detected by a component of a Long-Term Evolution (LTE) Radio Access Network (RAN) of the network, by a Mobility Management Entity (MME) of the network, or by some other network component. Single Radio Voice Call Continuity (SRVCC) procedures may be used to implement the handover.

Exemplary embodiments are directed to a method and system for transferring a user session between a source device and a target device. The method may include receiving a request to transfer a user session from a source device to the target device, the user session corresponds to a running session between the source device and a session end point device, receiving session data corresponding to the user session transfer request, determining, at the target device, a corresponding launch application for the user session using the session data, launching the corresponding launch application to initiate a transfer of the user session; and replacing the source device in the running session by establishing a communication channel with the session end point device upon the launch of the corresponding launch application using the session data and terminating the user session at the source device.

A method is provided that allows for prioritizing Push-To-Talk (PTT) service in a roamed network. PTT service is enabled for a mobile device at a first network. The mobile device roams to a second network that is of an older generation than the first network. It is determined that the mobile device has an active PTT subscription. PTT service is prioritized for the mobile device over circuit switched services on the second network.

A system comprising: a plurality of mobile edge caches integrated within a corresponding plurality of mobile environments; a local network manager coupled to each edge cache device in each mobile environment to provide network connectivity to client devices within each mobile environment; a mobile high speed network interface coupled to each mobile edge cache within each mobile environment to establish a high bandwidth link to one or more fixed high speed network interfaces when the mobile environment is within range; a fixed core cache to store content titles owned by a content provider, the content titles to be distributed to the plurality of mobile edge caches, each content title comprising a plurality of title segments; a plurality of fixed edge caches coupled between the fixed core cache and the mobile edge caches; a content distribution manager to cause the title segments to be strategically spread across the fixed edge caches, wherein different fixed edge caches are initially to be provided with different sets of the title segments; a first content aggregator coupled to a first fixed edge cache, the first content aggregator to request title segments not stored in the first fixed edge cache from the plurality of mobile edge caches as the high bandwidth link becomes available to each of the mobile edge caches.