Abstract: Emergency call backs may be placed to a user device in a manner that bypasses certain features (e.g., call forwarding) that may be enabled by the device. A method may include receiving an emergency call from a user device; and creating, in response to the emergency call, an emergency session associated with the user device, where the creating includes forwarding the call to a public safety access point (PSAP) server that handles emergency calls. The method may further include receiving a call, such as an emergency call back call, destined for the user device; determining that the emergency session has not expired when an elapse time associated with the emergency session is less than a threshold; and forwarding, to the user device, the call, as a return call from the PSAP server, based on the determination that the emergency session has not expired.

Abstract: A mobile device sends a request for a unique wireless network session identifier and receives, based on the request, the unique wireless network session identifier. The mobile device determines whether the unique wireless network session identifier includes a femtocell identifier. The mobile device applies one set of configuration settings when the unique wireless network session identifier includes the femtocell identifier, and applies a different set of configuration settings when the unique wireless network session identifier does not include the femtocell identifier.

Abstract: A device associated with a Voice over IP (VoIP) network receives a call from a mobile device. The device determines whether a sector identifier (ID) associated with the call includes a femtocell identifier. The device further determines a location identifier included in the sector ID when the sector ID includes the femtocell identifier. The device also identifies a recipient of the call based on the location identifier and forwards the call to the recipient.

Abstract: A server device configured to store an Internet protocol (IP) registry, the registry includes information for a user device, the information includes particular identifiers for the user device, an IP address for the user device, and a particular access point name (APN), where the particular APN corresponds to a service, an application, a network, or data used by the user device; receive a query that includes identifiers and an APN; perform, using the IP registry, an operation to identify the information, for the user device, based on the identifiers and the APN; obtain the information for the user device, when the identifiers match the particular identifiers stored in the IP registry and when the APN matches the particular APN stored in the IP registry; and send, to an application server, the information for the user device, where the IP address permits the application server to communicate with the user device.

Abstract: A method may include receiving a session initiation protocol (SIP) Invite message associated with a call and determining that the call involves location based processing. The method may also include identifying location information associated with the call based on header information included in the SIP Invite message and identifying a location ID based on the location information. The method may further include modifying the SIP Invite message to include the location ID, identifying a call type associated with the call and identifying a mobile switching center to which the SIP Invite message is to be forwarded based on the call type and the location information.

Abstract: Location-based calling may be provided for callers that connect to a wireless network using femtocells. A network device may receive a call initiation message including an identifier of a femtocell through which the call was placed. The network device may obtain an identifier of a macro cell base station that serves a geographical coverage area that includes the femtocell and replace the identifier of the femtocell, in the message, with the identifier of the macro cell base station, to obtain a modified message. The modified message may be forwarded through the network to be processed as if the caller placed the location-based call through the macro cell base station.

Abstract: Exemplary inter-network profile repository interworking systems and methods are disclosed. An exemplary system includes an interface facility that interfaces with a home subscriber server (“HSS”) of a long term evolution (“LTE”) communications network and a home location register (“HLR”) of an alternate communications network, the HSS and the HLR maintaining separate profiles associated with a user device configured to access the LTE communications network and the alternate communications network. The exemplary system further includes a synchronization facility communicatively coupled to the interface facility and that synchronizes profile data associated with the user device across the separate profiles maintained by the HSS and the HLR. Corresponding systems and methods are also disclosed.

Abstract: The present invention discloses a reversal connection protecting circuit. The reversal connection protecting circuit includes a power supply interface, a secondary battery, a reversal connection driving unit and a power switching unit. The reversal connection protecting circuit further includes an anti-reversal unit. And the reversal connection protecting circuit further includes a processing unit and a warning interface. According to the present invention, the inconvenience brought by substituting a fuse that is melted in a protecting circuit under the condition that the power supply of the protecting circuit is reversely connected in prior art is overcome.

Abstract: A method and a system provide integrated lawful intercept, for IMS over an Evolved Packet Core (EPC), for both packet data and session initiation protocol (SIP)-based applications. The system includes a device that receives a lawful intercept request from a law enforcement agency, and determines whether a packet data lawful intercept or a SIP-based applications (SBA) lawful intercept is requested by the lawful intercept request. The device also provisions, when a packet data lawful intercept is requested by the lawful intercept request, a policy control and charging rules function (PCRF) and a packet data network (PDN) gateway (PGW) for the packet data lawful intercept. The device further provisions, when a SBA lawful intercept is requested, a proxy call session control function (P-CSCF), a serving-CSCF (S-CSCF), and a session border controller (SBC) for the SBA lawful intercept.

Abstract: A device receives an emergency call invite generated by a user device associated with an Internet protocol (IP) multimedia subsystem (IMS) media gateway, and forwards the emergency call invite to a location resource function/route determination function (LRF/RDF) device for determining public safety answering point (PSAP) routing information. The device receives, from the LRF/RDF device, the PSAP routing information based on the emergency call invite, and routes the emergency call invite to a particular PSAP based on the PSAP routing information. If the emergency call invite is routed to a legacy PSAP, the emergency call is routed to the legacy PSAP via legacy mobile switching center (MSC) direct trunks. If the emergency call invite is routed to an IP PSAP, the emergency call is routed to the IP PSAP via an IP connection.

Abstract: An exemplary method includes generating an access record associated with a data session provided by at least one access layer element over an access network, generating an application record associated with an application provided by at least one application layer element over the access network, transmitting data representative of a correlation parameter associated with application from the at least one application layer element to the at least one access layer element via an inter-layer liaison subsystem, and inserting the correlation parameter associated with application and received from the at least one application layer element via the inter-layer liaison subsystem in the access record. In some examples, the method further includes correlating the access record and the application record based on the correlation parameter associated with the application. Other exemplary inter-layer parameter liaison methods and systems are also disclosed.

Abstract: A method and apparatus for reduction of call setup rate in an ATM network are described. The method and apparatus are particularly useful in ATM networks used for the transfer of bearer traffic between telephone switching offices. The method involves caching a number of switched virtual circuits (SVCs) between edge interfaces to the ATM network. A cache connection is an emulated circuit between two edge interfaces that is available and idle. The apparatus provides a central policy manager which computes and distributes cache policies to cache managers located in the edge interfaces. The cache managers manage pools of cached SVCs established between two edge interfaces. The method and apparatus reduces the number of connection setup requests sent to the ATM switches. The advantage is the ability to use ATM switches which have slow connection setup rates to provide commercially acceptable telephone services in an efficient manner.

Abstract: A dynamic admission control(AC) mechanism for accepting traffic service requests to a carrier IP network based on an iterative measurement method, is disclosed. For each service offered, a network planner assigns a certain amount of resources. A QoS manager keeps track of the amount of unused resources for each particular service. The amount of unused resources are estimated using actual measurements of load levels on various links of the network. Each router monitors the loading level on each of its outgoing interfaces. Those measurements are then transferred to the QoS manager upon request, or periodically at time intervals “T”.