Abstract: Methods, systems, and computer readable media for steering a subscriber between access networks are disclosed. According to one aspect, a method for steering a subscriber between access networks includes, at a first policy and charging rules function (PCRF) that serves a first access network, identifying a subscriber of the first access network as a candidate for steering to a second access network that is served by a second PCRF, querying the second PCRF to determine whether the candidate subscriber is allowed access to the second access network, and, upon a determination that the candidate subscriber is allowed access to the second access network, steering the candidate subscriber to the second access network.

Abstract: The subject matter described herein includes methods, systems and computer readable media for centralized routing and call instance code management for bearer independent call control (BICC) signaling messages. One aspect of the subject matter described herein includes a system for routing BICC signaling messages and managing call instance code assignments. The system includes a BICC signaling router. The BICC signaling router includes a routing module for centralized routing of BICC signaling messages between a plurality of BICC signaling nodes. The BICC signaling router further includes a call instance code management module for centralized assignment of call instance codes for BICC signaling sessions routed through the BICC signaling router.

Abstract: A policy and charging rules function (PCRF), generates a Diameter audit message concerning an application level Diameter session for which local resources are maintained by the PCRF. The PCRF includes, in the audit message, a fake parameter value. The PCRF sends the audit message with the fake parameter value to the OCS or the AF over an Sy or Rx interface. The PCRF receives a response to the audit message from the OCS or AF. The PCRF determines, based on the response, whether the application level session comprises and orphan session. The PCRF, in response to determining that the application level Diameter session comprises an orphan session frees the local resources maintained by the PCRF for the orphan session.

Abstract: According to one aspect, the subject matter described herein includes a method for managing the roaming preferences of a mobile subscriber. The method includes sending a preferred network roaming list to a mobile subscriber device. The method further includes sending a triggering message for terminating a PDP context link involving the mobile subscriber device and for activating the preferred network roaming list on the mobile subscriber device.

Abstract: The subject matter described herein includes systems, methods, and computer readable media for adjusting a quota consumption rate. An exemplary method occurs at a first policy node. The method includes detecting a trigger for adjusting a quota consumption rate associated with a subscriber. The method further includes in response to detecting the trigger, adjusting the quota consumption rate associated with the subscriber.

Abstract: Methods, systems, and computer readable media for providing a user record deletion notification are disclosed. In one example, the method comprises determining, at a subscriber data management (SDM) node, that a service subscription to an access network is to be terminated, wherein the service subscription is associated with a subscriber user, generating, at the SDM node, a notification message that includes a deletion notification attribute, and sending the Diameter notification message to an application server associated with the access network. The method further includes terminating, at the application server, a communication service connection established between the subscriber user and the access network in response to detecting the deletion notification attribute in the notification message and deleting, in the SDM node, a user record associated with the service subscription after receiving notification of the connection termination.

Abstract: According to one aspect, the subject matter described herein includes a method for communicating service data flow (SDF) event information. The method includes steps occurring at a policy and charging rules function (PCRF) node. The method also includes communicating, via an Rx interface, a request to a deep packet inspection (DPI) node to be notified when an SDF event occurs. The method further includes receiving notification from the DPI node that the SDF event has occurred.

Abstract: Methods, systems, and computer readable media for performing enhanced service routing are disclosed. One method includes receiving, at a Diameter application executing on a message processor associated with a DSR, a Diameter message that requires a service. The method also includes determining, using service routing data, at least one service provider for performing the service associated with the Diameter message, wherein the service routing data is based on service capability information provided by a plurality of service providers and sending the Diameter message or a portion of the Diameter message to the at least one service provider for performing the service.

Abstract: According to one aspect, the subject matter described herein includes a method for caching call session control function (CSCF) data at a Diameter signaling router (DSR). The method includes steps occurring at a DSR network node comprising a communication interface, a processor, and a memory. The steps include receiving, via the communication interface, a Diameter message associated with a network subscriber. The steps also include identifying, by the processor, a CSCF associated with the network subscriber based on the Diameter message. The steps further include storing, in the memory, a record associating the CSCF and the network subscriber.

Abstract: Methods, systems, and computer readable media for providing a multi-network equipment identity register are disclosed. According to one aspect, the subject matter described herein includes a system for providing a multi-network equipment identity register. A node in a telecommunications network receives from a requesting entity a request to check an identity of a user equipment, the request containing the identity of the user equipment, queries an EIR using the identity of the user equipment, receives a response from the EIR, and forwards the response to the requesting entity. The node includes first and second interfaces for receiving requests to check an identity of a user equipment in a first and second protocol, respectively, such that a user equipment that is blacklisted in a network that uses the first protocol is also blacklisted in a network that uses the second protocol.

Abstract: Methods, systems, and computer readable media for controlling access to voice resources using mobility management messages are disclosed. According to one method, a mobility management message associated with a mobile subscriber is received. A priority level of the mobile subscriber is determined based on the mobility management message and access to voice resources in controlled based on the priority level.

Abstract: According to one aspect, the subject matter described herein includes a method for congestion management in a Diameter signaling network. The method occurs a Diameter routing node. The method includes determining, using a metric associated with Diameter message processing, that a first Diameter message processing metric threshold has been exceeded. The method also includes in response to determining that the first Diameter message processing metric threshold has been exceeded, performing a first congestion mitigation action, where performing the first congestion mitigation action includes analyzing subsequent Diameter messages to determine one or more common attributes of the subsequent Diameter messages and in response to determining the one or more common attributes of the subsequent Diameter messages, performing a second congestion mitigation action for Diameter messages having the one or more common attributes.

Abstract: Methods, systems, and computer readable media for seamless roaming between networks are disclosed. According to one aspect, the subject matter described herein includes a method for seamless roaming between networks. The method occurs at a home subscriber server (HSS). The method includes maintaining registration status information for a subscriber. The method also includes communicating with a first network via a first network interface and with a second network via a second network interface using the registration status information to facilitate roaming between the first network and the second network. The first network interface is configured to receive and send Diameter signaling messages for managing mobility of the subscriber and the second network interface is configured to receive and send non-Diameter signaling messages for managing mobility of the subscriber.

Abstract: Methods, systems, and computer readable media for providing interactive user controlled policy are disclosed herein. One method includes, at a policy enhancement server (PES), receiving, from an application service provider, an indication that a user is eligible for enhanced network policy in response to the user accessing an application service provided by an application service provider. In response to receiving the indication, at least one attribute of a network policy associated with the user is enhanced.

Abstract: According to one aspect, the subject matter described herein includes a system for a system for obscuring DIAMETER node information in a communication network. The system includes a DIAMETER agent platform. The DIAMETER agent platform includes a network interface for receiving a message from a first DIAMETER node. The DIAMETER agent platform further includes a DIAMETER information hiding module for modifying, in the first message, DIAMETER information for the first DIAMETER node so as to obscure the identity of the first diameter node. The diameter agent includes a routing module for routing the modified message to a second DIAMETER node.

Abstract: According to one aspect, the subject matter described herein includes a method of operating a Diameter signaling router (DSR) for routing Diameter messages. The method includes steps occurring at a DSR comprising a plurality of Diameter message processors, each configured to perform at least one Diameter function. The method also includes detecting, at a first of the plurality of Diameter message processors, a change in status relating to the at least one Diameter function. The method further includes communicating, by the first of the plurality of Diameter message processors and to a second of the plurality of Diameter message processors, an indication of the change in status.

Abstract: Systems, methods, and computer readable media for application-level authentication in a telecommunications network are disclosed. According to one aspect, the subject matter described herein includes a method for application-level authentication of messages in a telecommunications network. The method includes, at a node in a telecommunications network, receiving, from a personal communications device having a user, a message requiring application-level authentication, the message including information associated with the user and incorporating first authentication information associated with the user, the first authentication information being provided from a source that is not the user of the personal communications device. A request for second authentication information associated with the user is sent to an authentication server.

Abstract: Methods, systems, and computer readable media for distributing Diameter network management information are disclosed. According to one method, a first Diameter node obtains Diameter network management subscription information. The first Diameter node obtains Diameter network management information. The first Diameter node determines, using the Diameter network management subscription information, whether at least one second Diameter node is subscribed to receive the obtained Diameter network management information. In response to determining that the at least one second Diameter node is subscribed to receive the obtained network management information, the first Diameter node sends the obtained Diameter network management information to the at least one second Diameter node.

Abstract: Methods, systems, and computer program products for clustering and communicating between Internet protocol multimedia subsystem (IMS) entities and for supporting database access in an IMS network environment. According to one aspect, an IMS cluster node includes a serving call state control function (S-CSCF) for controlling media sessions between IMS users. The cluster node further includes a home subscriber service (HSS) function for storing and providing IMS subscription information to the S-CSCF function. A shared memory is operatively associated with the S-CSCF function and the HSS function. The S-CSCF function obtains IMS subscription information from the HSS function via the shared memory.

Abstract: According to one aspect, the subject matter described herein includes a method for subscriber activated policy enhancement. The method may include receiving a policy enhancement code from a user device at a policy enhancement server (PES). The method may further include obtaining at least one policy enhancement corresponding to the policy enhancement code in response to receiving the policy enhancement code from the user device. The method may further include enhancing at least one policy aspect of a policy for the user device based on the policy enhancement.