Abstract: An approach for providing telephony services over a data network is disclosed. A communications system includes a location server that receives a request from a calling station to establish a call with a station associated with a called party. The location server generates a message specifying a set of addresses relating to the called party and context information. A proxy server communicates with the location server and is configured to receive the message and to attempt to establish the call based on the set of addresses. The proxy server iteratively queries the location server to obtain another set of addresses if no prior address results in establishment of the call.

Abstract: A method for signaling an Integrated Messaging System (IMS) on an Internet Protocol (IP) based network to deposit a message, including the steps of sending a Session Initiation Protocol (SIP) SIP INVITE request to the IMS indicating a message deposit action; receiving a corresponding SIP message from the IMS agreeing to participate in the message deposit action; and sending an SIP acknowledge message to the IMS confirming receipt of the corresponding SIP message; and depositing the message in a destination mailbox. A method of signaling an IMS on an IP based network to retrieve a deposited message, the method including the steps of sending a SIP INVITE request to the IMS indicating a message retrieval action; receiving a corresponding SIP message from the IMS agreeing to participate in the message retrieval action; sending an SIP acknowledge message to the IMS confirming receipt of the corresponding SIP message; and retrieving the deposited message from a mailbox corresponding to known account information.

Abstract: A method for signaling an Integrated Messaging System (IMS) on an Internet Protocol (IP) based network to deposit a message, including the steps of sending a Session Initiation Protocol (SIP) SIP INVITE request to the IMS indicating a message deposit action; receiving a corresponding SIP menage from the IMS agreeing to participate in the message deposit action; and sending an SIP acknowledge message to the IMS confirming receipt of the corresponding SIP message; and depositing the message in a destination mailbox. A method of signaling an IMS on an IP based network to retrieve a deposited message, the method including the steps of sending a SIP INVITE request to the IMS indicating a message retrieval action; receiving a corresponding SIP message from the IMS agreeing to participate in the message retrieval action; sending an SIP acknowledge message to the IMS confirming receipt of the corresponding SIP message; and retrieving the deposited message from a mailbox corresponding to known account information.

Abstract: In a SIP network, SIP servers are provisioned with information used to authenticate subscribers and entities that will be placing calls. This information can be used during call establishment to allow or deny calls, as well as to determine the appropriate party to bill if the call involves a charge, such as a long distance charge. In addition to allowing calls between authenticated and trusted entities, there is a need for the SIP server to allow certain kinds of calls that involve non-trusted users or entities. If non-trusted entities where not recognized, trusted users and entities within the SIP network would not be able to receive calls from users or entities not know to the SIP server that is providing them services.

Abstract: A method provides call pickup in a communications network. The method includes initiating a call from a first device to a second device. The call is initiated over one or more networks, where at least one of the one or more networks includes a data network. The method further includes storing information relating to the call initiation between the first device and the second device, receiving a message from a third device during the call initiation, where the message includes a call pickup indication, retrieving the information relating to the call initiation between the first device and the second device, and establishing a call between the first device and the third device based on the retrieved information.

Abstract: An approach for establishing a communication session according to a subscriber profile that is automatically updated is disclosed. A locator device, which is associated with a subscriber and includes a Global Positioning System (GPS) transponder, outputs geographic information that is transmitted to a communications network for establishing the communication session. The geographic information corresponds to one of a plurality of addresses specified in the subscriber profile to set a current address. The addresses are associated with a plurality of devices adapted to complete the communication session. The one address is designated as the current address if the geographic information corresponds to the one address, otherwise the current address is set to a default address, wherein the communication session is established based on the current address.

Abstract: An approach for providing content transmission upon placement of a call on hold is disclosed. A data communications system includes a proxy server that is configured to receive a message from a first client indicating the hold condition of a Voice Over Internet Protocol (VOIP) call with a second client. The system also includes a content server (e.g., music server) that is configured to transmit the content stored therein to the second client in response to a request message from the server.

Abstract: A method for signaling an Integrated Messaging System (IMS) on an Internet Protocol (IP) based network to deposit a message, including the steps of sending a Session Initiation Protocol (SIP) SIP INVITE request to the IMS indicating a message deposit action; receiving a corresponding SIP message from the IMS agreeing to participate in the message deposit action; and sending an SIP acknowledge message to the IMS confirming receipt of the corresponding SIP message; and depositing the message in a destination mailbox. A method of signaling an IMS on an IP based network to retrieve a deposited message, the method including the steps of sending a SIP INVITE request to the IMS indicating a message retrieval action; receiving a corresponding SIP message from the IMS agreeing to participate in the message retrieval action; sending an SIP acknowledge message to the IMS confirming receipt of the corresponding SIP message; and retrieving the deposited message from a mailbox corresponding to known account information.

Abstract: An approach for tracking denial-of-service (DoS) flood attacks using an overlay IP (Internet Protocol) network is disclosed. One or more tracking routers form an overlay tracking network over the network of an Internet Service Provider (ISP). The ISP network includes numerous transit routers and edge routers. The tracking routers communicate directly with all the edge routers using IP tunnels. The edge routers within the ISP network perform security diagnostic functions, in part, to identify a DoS flood attack that has been launched by one or more attackers. To track down an attacker, an egress edge router identifies the DoS flood attack datagrams, rerouting these datagrams to the overlay tracking network. The tracking routers perform hop-by-hop input debugging to identify the ingress edge router associated with the source of the DoS flood attack.

Abstract: A Web-based call routing management workstation application which allows authorized customers to control toll free routing and monitor call center status. An architecture including one or more web servers located in a firewalled demilitarized zone (DMZ) as communications medium between the customer workstations at the customer sites and the enterprise back-end applications providing the call routing management services, provides a secure infrastructure for accessing the enterprise applications via the otherwise insecure public Internet. The present invention enables creation and management of call by call routing rules by a customer with a workstation having an Internet access and a supported Web browser. The customized rules may be tested and/or debugged via the Web-enabled workstation, using a debugger/tester which runs the routing rules under a simulated environment.

Abstract: An Internet Protocol (IP) call distribution system, for selecting agents to handle incoming requests from users, that uses publish/subscribe technology so that agent state does not need to be maintained. An automatic call distribution method for selecting agents to handle incoming requests from users, that uses publish/subscribe technology so that agent state does not need to be maintained.

Abstract: A system and method for responding to a failure in a communications network. The failure is detected by a router, which then transmits data from the protection port. A signal is sent from the router to a optical cross-connect system indicating the failure and causing the optical cross-connect system to connect the protection port of the router to a working port of the OXC.

Abstract: The device tracking location adherence and route adherence technology, according to an exemplary embodiment of this invention, at least provides for secure message reception from a remote device. The present invention allows for secure data transmission between a remote device and while employing a small amount of bandwidth thereby providing a cost-effective data transmission system. This is especially advantageous where a fleet of remote devices is employed within a network.

Abstract: A device tracking location adherence and route adherence technology, is disclosed that at least provides a tracked device receiving, a set of coordinates associated with a boundary area, and obtaining a position of the tracked device. Based upon the received coordinates and the detected position of the tracked device, a determination is made as to whether the tracked device is located inside the boundary area or outside the boundary area. An alert signal is then generated and transmitted if the result of the determining is different from an immediately previous obtained result. The system allows, for example, drastic reduction in the amount of data traffic required within a system since the tracked device performs much of the necessary processing. This is especially advantageous where a fleet of tracked devices are employed within a network.

Abstract: An apparatus and method are applied to characterizing an dispersion-affecting element for use in controlling chromatic dispersion in an optical communications link. Information regarding the behavior of the dispersion-affecting element is recorded and stored in a medium that is provided for deployment with the dispersion-affecting element to enable improved management and active control of the dispersion-affecting element. The suitability of the dispersion-affecting element for operating under different conditions may also be characterized.

Abstract: A computerized visitation registration and scheduling system provides the department of corrections the ability to have inmates and visitors schedule visits through an automated interface, such as a telephone interface, or the internet. The system allows, for example, the ability for potential visitors to perform a registration process with little to no manual overhead requirements of department of corrections employees. Secondly, potential visitors, once approved, are able to schedule inmate visits without necessarily having to burden department of corrections employees.

Abstract: In support of an interactive telephony services system, a presence gateway provides presence information regarding availability of a called party to communicate using an instant communications client.

Abstract: A system, method and computer program product for processing event records. The present invention includes a detection layer, an analysis layer, an expert systems layer and a presentation layer. The layered system includes a core infrastructure and a configurable, domain-specific implementation. The detection layer employs one or more detection engines, such as a rules-based thresholding engine and a profiling engine. The detection layer can include an Artificial Intelligence based pattern recognition engine for analyzing data records, for detecting new and interesting patterns and for updating the detection engines to insure that the detection engines can detect the new patterns. In one embodiment, the present invention is implemented as a telecommunications fraud detection system. When fraud is detected, the detection layer generates alarms which are sent to the analysis layer. The analysis layer filters and consolidates the alarms to generate fraud cases.

Abstract: A network architecture in accordance with the present invention includes a communication network that supports one or more network-based Virtual Private Networks (VPNs). The communication network includes a plurality of boundary routers that are connected by access links to CPE edge routers belonging to the one or more VPNs. To prevent traffic from outside a customer's VPN (e.g., traffic from other VPNs or the Internet at large) from degrading the QoS provided to traffic from within the customer's VPN, the present invention gives precedence to intra-VPN traffic over extra-VPN traffic on each customer's access link through access link prioritization or access link capacity allocation, such that extra-VPN traffic cannot interfere with inter-VPN traffic.

Abstract: An intelligent telephone set is disclosed that includes a caller-ID circuit that extracts a call identifier from an incoming call. A call processing circuit in communication with the caller-ID circuit assigns the incoming call to a caller category associated with the call identifier. Subsequently, it selects a call processing action corresponding to the caller category and processes the incoming call using the selected call processing action. The intelligent telephone set allows users to set criteria for receiving and processing calls based on CID data One such call processing action is to use CID data to forward an incoming call to a predetermined location.