Abstract: A system for integrating a first application server container with a second application server container in a telecommunication network. The system comprising a bidirectional messaging bus having a first end and a second end, a first messaging adapter conforming to the first application server container, the first messaging adapter communicably connected to the first end of the messaging bus and is deployed in the first application server container and a second messaging adapter conforming to the second application server container, the second messaging adapter communicably connected to the second end of the messaging bus and is deployed in the second application server container.

Abstract: A method for correlating a plurality of messages conforming to different protocols and associated with a common communication call in a communication network. The method comprising extracting an information from a message, extracting a protocol specific identifier, forming a plurality of protocol specific queues, forming a correlation ID using the information extracted from the message and the protocol specific identifier of the message, such that the messages associated with the same communication call have same correlation ID and forming a call specific queue comprising of messages extracted from the plurality of protocol specific queues associated with the same common communication call and having same correlation ID. The method further includes processing of messages from the call specific queue with FIFO criterion.

Abstract: A SIP server can be distributed over a cluster network and handle the processing of various SIP communications. A Diameter protocol web application can be deployed on the engine tier of the SIP server for enabling communication between the SIP server and an HSS. A profile service API can be provided that allows applications running on the SIP server to access user profile data stored on the HSS. The applications can also be allowed to subscribe to notifications about changes to the user profile data on the HSS. An Sh interface provider can be deployed on the SIP server for generating and responding to Diameter command codes. SIP servlets can access the user profile data in the form of an XML document.

Abstract: The Session Initiation Protocol (SIP) server can be comprised of an engine tier and a state tier distributed on a cluster network environment. The engine tier can send, receive and process various messages. The state tier can maintain in-memory state data associated with various SIP sessions. Various applications can be running on the engine tier. A new version of an application can be deployed alongside the old version, simultaneously running on the SIP server. Incoming messages for new calls can be directed by the SIP server to the new version of the application. Incoming messages for previously established calls can be directed to the old version of the application. Once the old version is finished processing calls, it can be undeployed.

Abstract: The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network environment. The engine tier can send, receive and process various messages. The state tier can maintain in-memory state data associated with various SIP sessions. A near cache can be residing on the engine tier in order to maintain a local copy of a portion of the state data contained in the state tier. Various engines in the engine tier can determine whether the near cache contains a current version of the state needed to process a message before retrieving the state data from the state tier. Accessing the state from the near cache can save on various latency costs such as serialization, transport and deserialization of state to and from the state tier. Furthermore, the near cache and JVM can be tuned to further improve performance of the SIP server.

Abstract: The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network environment. The engine tier can send, receive and process various messages. The state tier can maintain in-memory state data associated with various SIP sessions. The SIP server can support converged HTTP and SIP modes of communication. An application session can be established for allowing the association of an HTTP session with a SIP session such that data can be exchanged between them. This association can be broken and reestablished with new application sessions such that various SIP and HTTP clients can join and leave new sessions. An API can be provided to enable various associations and method calls for the application session.

Abstract: Systems and methods are provided for improving latency during message processing in a network environment via the use of SIP server architecture. The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network. The engine tier can send and receive messages and execute various processes. The state tier can maintain in-memory state data associated with various SIP sessions. The state tier can store various long lived data objects and the engine tier can contain short lived data objects. The state data can be maintained in partitions comprised of state replicas. When processing messages, the engine can pull state data objects from the state tier, use the objects and push them back to the state tier after processing is complete. If one state replica is unavailable, such as during garbage collection, the engine can retrieve the objects from another replica in the partition.

Abstract: An instrumentation service is described that uses dye injection and filtering in a Session Initiation Protocol (SIP) application server environment. The instrumentation service can provide a flexible mechanism for selectively adding diagnostic code to the SIP application server and the various applications running on it. It can allow flexible selection of locations in the server and application code, at which instrumentation code can be added. The process of adding diagnostic code can be deferred to the time of running the server at the deployment site. The instrumentation service further allows flexible selection of diagnostic actions, which can be executed at selected locations. In various embodiments, the execution of diagnostic code can be dynamically enabled or disabled while the server is running. Also, the behavior of diagnostic code executed at such locations can be dynamically changed while the server is running.

Abstract: Systems and methods are provided for improving latency during message processing in a network environment via the use of SIP server architecture. The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network. The engine tier can send and receive messages and execute various processes. The state tier can maintain in-memory state data associated with various SIP sessions. The state tier can store various long lived data objects and the engine tier can contain short lived data objects. The state data can be maintained in partitions comprised of state replicas. When processing messages, the engine can pull state data objects from the state tier, use the objects and push them back to the state tier after processing is complete. If one state replica is unavailable, such as during garbage collection, the engine can retrieve the objects from another replica in the partition.

Abstract: The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network. Engine nodes in the engine tier can process SIP messages and can read/write state information from/to the state tier. State tier can maintain state information in a set of partitions of one or more replicas which contain duplicate information. The engine nodes can be adapted to detect and report replica failures and the replicas can in turn be adapted to detect and report engine node failures. Replicas can detect faults with an engine node if the engine node fails to poll the replica for a specified period of time and can then report the failure. The engine node can detect failures of a replica when reading or writing state information and can report the failure to another replica, which can be responsible for updating the partition view to exclude dead replicas.

Abstract: An instrumentation service is described that uses dye injection and filtering in a Session Initiation Protocol (SIP) application server environment. The instrumentation service can provide a flexible mechanism for selectively adding diagnostic code to the SIP application server and the various applications running on it. It can allow flexible selection of locations in the server and application code, at which instrumentation code can be added. The process of adding diagnostic code can be deferred to the time of running the server at the deployment site. The instrumentation service further allows flexible selection of diagnostic actions, which can be executed at selected locations. In various embodiments, the execution of diagnostic code can be dynamically enabled or disabled while the server is running. Also, the behavior of diagnostic code executed at such locations can be dynamically changed while the server is running.

Abstract: The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network environment. The engine tier can send, receive and process various messages. The state tier can maintain in-memory state data associated with various SIP sessions. A near cache can be residing on the engine tier in order to maintain a local copy of a portion of the state data contained in the state tier. Various engines in the engine tier can determine whether the near cache contains a current version of the state needed to process a message before retrieving the state data from the state tier. Accessing the state from the near cache can save on various latency costs such as serialization, transport and deserialization of state to and from the state tier. Furthermore, the near cache and JVM can be tuned to further improve performance of the SIP server.

Abstract: The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network environment. The engine tier can send, receive and process various messages. The state tier can maintain in-memory state data associated with various SIP sessions. The SIP server can support converged HTTP and SIP modes of communication. An application session can be established for allowing the association of an HTTP session with a SIP session such that data can be exchanged between them. This association can be broken and reestablished with new application sessions such that various SIP and HTTP clients can join and leave new sessions. An API can be provided to enable various associations and method calls for the application session.

Abstract: The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network. Engine nodes in the engine tier can process SIP messages and can read/write state information from/to the state tier. State tier can maintain state information in a set of partitions of one or more replicas which contain duplicate information. The engine nodes can be adapted to detect and report replica failures and the replicas can in turn be adapted to detect and report engine node failures. Replicas can detect faults with an engine node if the engine node fails to poll the replica for a specified period of time and can then report the failure. The engine node can detect failures of a replica when reading or writing state information and can report the failure to another replica, which can be responsible for updating the partition view to exclude dead replicas.

Abstract: A SIP server can be distributed over a cluster network and handle the processing of various SIP communications. A Diameter protocol web application can be deployed on the engine tier of the SIP server for enabling communication between the SIP server and an HSS. A profile service API can be provided that allows applications running on the SIP server to access user profile data stored on the HSS. The applications can also be allowed to subscribe to notifications about changes to the user profile data on the HSS. An Sh interface provider can be deployed on the SIP server for generating and responding to Diameter command codes. SIP servlets can access the user profile data in the form of an XML document.

Abstract: The SIP server can be comprised of an engine tier and a state tier distributed on a cluster network environment. The engine tier can send and receive messages and execute various processes. The state tier can maintain in-memory state data associated with various SIP sessions. For example, the state tier can store various long lived data objects and the engine tier can contain short lived data objects. The state data can be maintained in partitions comprised of state replicas. A load balancer can receive incoming message traffic and distribute it to the engine tier for processing. When processing a message, the engine can pull state data objects from the state tier, use the objects and push them back to the state tier after processing is complete. If one state replica is unavailable, such as during garbage collection, the engine can retrieve the objects from another replica in the partition.