Abstract: Systems and methods are provided for facilitating communications with an operating system suspended OTT application on a user device. The methods include sending, from a P-CSCF or a WebRTC Gateway, to a push notification framework, a notification configured to cause the push notification framework to send a push notification to the suspended OTT application (IMS OTT application or WebRTC OTT application). The push notification may wake up the OTT application and cause a notification initiated REGISTRATION request to be sent by the OTT application. This can be initiated just before the IMS core network de-registers the OTT application based on a timer, or based on receipt of a SIP request (e.g. phone call received) when the OTT application is suspended. In addition, the push notification provides a lightweight authentication at the P-CSCF instead of a full blown authentication at the usual place S-CSCF.

Abstract: A gateway system employing a redirect mechanism at upper layer protocols over Transmission Control Protocol (TCP) in a packet network to circumvent problems related to alteration of TCP sequence number due to header enrichment. The gateway system increases the size of a redirect message by the size of the header enrichment and thereby brings TCP sequence number on both ends in sync despite adding the header enrichment information.

Abstract: A system, method, and network node for synchronizing supplementary services settings between a database in a circuit-switched network and a database in a packet-switched network are disclosed. An exemplary communication system synchronization node is configured to receive a message containing a change to a supplementary service setting associated with a user equipment (UE) connected to a circuit-switched (CS) network or a packet-switched (PS) network, and communicate the change to the supplementary service setting to one or both of the HLR and the HSS, so that the supplementary service settings in both the HLR and the HSS are updated to reflect the change to the supplementary service setting.

Abstract: Communication systems and methods suitable for use in a Multiple Line Multiple Device service environment, involving a native line and a second shared line, are disclosed. Logic at one or more nodes and application servers is configured to ensure that network handover data, or other information, is only updated for the native line registration but not the shared line. Then when a call is placed or received on the shared line, the call is anchored to the native line based on that network handover data. If, during that call, a request is received to handover the call from a first network having a first communication protocol to a second network having a second communication protocol, the handover occurs based on the anchored native line. In one example embodiment the first network is a Packet Switched network and the second network is a Circuit Switched network.

Abstract: A mechanism to allow provisioning and use of BYOD (Bring Your Own Device) for authorized access in the enterprise network through a 3G/4G/Wi-Fi access network is provided. A brokering entity in the mobile packet core is provisioned for each authorized employee with enterprise specific rules for security and steering of user traffic. An Enterprise Container is defined as entity on the User Equipment that is self-contained virtual machine with enterprise sanctioned applications. An intelligent mechanism for and steering of signaling and traffic from such BYOD devices to the brokering entity is defined. At any time by using the personal container or the default behavior of the user equipment the user can get mobile service as if the Enterprise Container did not exist. Further, when such employment relationship is terminated the user's BYOD needs to be restored to its pre-employment functionality.

Abstract: A method for switch user equipment from a Long Term Evolution system to a Circuit Switched system when receiving a voice call is disclosed. The method may comprise: receiving, at an IWF (Internet Working Function) network node, a Mobility Application Part Unstructured Supplementary Service Data (MAP USSD) message identifying a User Equipment (UE) originated from a USSD application, the UE associated with a first Mobile Switching Center (MSC); initiating Circuit Switched Fallback (CSFB) by sending a paging request to the UE; receiving a Cancel Location message associated with the UE from a Home Location Register (HLR) indicative of the UE being associated with a second MSC; forwarding the MAP USSD message to the UE via the HLR and the second MSC; receiving a MAP USSD response message from the UE via the HLR; and forwarding the MAP USSD response message to the USSD application.

Abstract: An IP Multimedia Subsystem (IMS) Centralized Services (ICS) Interworking Function (IWF) element comprises an i2 interface to an IMS core network, an i3 interface to a Telephony Application Server (TAS), a Mobile Applications Part-G (MAP-G) interface to a Mobile Switching Center (MSC) for retrieving subscriber identity, a MAP interface to a Home Location Register (HLR) for location management, subscriber management and call handling procedures, and an Sv interface to a Mobility Management Entity (MME) for appearing as a Visitor Location Register (VLR).

Abstract: A method for supporting an inbound roaming subscriber in an IMS network, comprises receiving a request from the inbound roaming subscriber to access the IMS network, determining the inbound roaming subscriber's home network, retrieving authentication credentials from the inbound roaming subscriber's home network, and verifying the authentication credentials, dynamically deriving public and private user identities for the inbound roaming subscriber, and creating and storing a subscriber record for the inbound roaming subscriber.

Abstract: The present disclosure includes a method and system for authentication interworking. In some embodiments, a method includes receiving, from a communication device, a request for services from a core network. The communication device is foreign to the core network. Authentication internetworking is provided to the foreign device to enable access to services provided by the core network.

Abstract: The present disclosure includes a system and method for discovering network elements. In some implementations, a method includes identifying information indicating a location of a femtocell device. A communication node associated with the femtocell device is identified. A Session Initiation Protocol (SIP) message including the location information is transmitted to the identified communication node. A response is received requesting that the femtocell device register with a different communication node associated with a cellular core network at least proximate the location.

Abstract: A method comprises registering, by an enhanced CPM server, to receive IMS registrations for a client device, receiving, by the enhanced CPM server, a message intended for the client device, storing the message in a network store, setting a Message Waiting Indicator flag in a HLR associated with the client device, receiving, from the HLR, an alert message that the client device has registered in a non-IMS network, and delivering, by the enhanced CPM server, at least a reference to the message stored in the network store to the client device.

Abstract: Disclosed is a method for providing services through a communication network to an end user device connected to the communication network, the method comprising allowing a service to be defined by providing a pointer to a standard format file comprising content for the service, reading content from the standard format file, and sending at least some part of said content through said communication network to the end user device.

Abstract: In some implementations, a method includes presenting a network node as a Visited Location Resource (VLR) for User Equipment (UE) to Mobile Management Entity (MME) in a Long Term Evolution (LTE) system. The network node includes an SGs interface to the MME in the LTE system and a MAP interface to a Mobile Switching Center (MSC) in a Cellular System (CS). A notification of the UE registering the LTE system is received from the MME. A network node registers, through the MAP interface, with a Home Location Resource (HLR) in the CS as the VLR for the UE.

Abstract: The present disclosure is directed to switching data streams between core networks. In some implementations, a method can include identifying a plurality of different RTP streams from a SIP device with at least one stream associated with a supplementary service. A plurality of single media streams for a plurality of different mobile devices in a cellular core network is identified. Dynamically switching connections between each RTP stream in the plurality of different RTP streams and a corresponding single media stream in the plurality of single media streams based, at least in part, on SIP signaling from the SIP device.

Abstract: The present disclosure includes a method and system for providing mobile core services independent of a mobile core device. In some embodiments, a method includes presenting a network element as a Base Station Controller to a first Mobile Switching Center (MSC) to provide mobile core services to a device foreign to the mobile core network. The network element is presented as a different MSC to the first MSC for providing an authentication vector used to confirm the foreign device as a mobile communication device.

Abstract: This disclosure provides a system and method for providing peer-to-peer multimedia. In some embodiments, a method includes identifying media devices based, at least in part, on a call session between communication devices. Peer-to-peer multimedia is provided between the identified media devices.

Abstract: The present disclosure is directed to system and method for accessing core network services. In some implementations, a method can include receiving a communication from a femtocell identifying status information of a cellular mobile device. Instructions for accessing one or more core-network services are identified based, at least in part, on the status information. The core-network services are accessed in accordance with the identified instructions.

Abstract: The present disclosure includes a system and method for discovering network elements. In some implementations, a method includes identifying information indicating a location of a femtocell device. A communication node associated with the femtocell device is identified. A Session Initiation Protocol (SIP) message including the location information is transmitted to the identified communication node. A response is received requesting that the femtocell device register with a different communication node associated with a cellular core network at least proximate the location.

Abstract: The present disclosure includes a system and method for internetworking multiple communication technologies. In some embodiments, a method includes receiving services of a first communication technology in a first protocol. The first communication technology is internetworked with a second communication technology of an end user device.

Abstract: This disclosure provides a system and method for intra-network switching. In some embodiments, a method includes receiving a communication in an Internet Protocol network. The communication is based, at least in part, on a cellular radio technology associated with a mobile switching center. The communication is routed to a network element independent of the mobile switching center.