Abstract: Methods and systems are provided for using voiceprint technology in CALEA surveillance. A media-analysis platform receives packets from a bearer element, the packets comprising media data representing a copy of at least part of a real-time media session. The bearer element is configured to initially send to the platform a copy of each of a plurality of media sessions that traverse the bearer element, and to stop sending a copy of a particular session in response to receiving an instruction from the platform. Responsive to receiving the packets, the platform compares the media data to at least one media-data profile, where each profile is associated with a target of surveillance. The platform determines whether the data matches any of the profiles. If the data does not match any of the profiles, the platform sends an instruction to the bearer element to stop sending the copy of the session.

Abstract: A communication system receives a registration message from a device that identifies a location of the device and a device identifier. The system transmits the location of the device to a location database. The system receives a watch list that identifies a plurality of devices. The system also receives a session request from the device for a session. The system processes the device identifier to determine if the device is a one of the plurality of devices. In response to determining that the device is one of the plurality of devices, the system transfers the location of the device from the location database to a location reporting system.

Abstract: Methods and systems are provided for natural-language surveillance of packet-based communications. Speech data is received, representing at least part of a speech session. The speech data is compared with at least one speech-characteristics profile in an automated manner. The comparing step comprises using natural-language-processing (NLP) to compare the speech data with the profiles on at least one of a lexical level, a syntactic level, a semantic level, a discourse level, and a pragmatic level. It is determined in an automated manner whether the speech data matches any of the profiles. If the speech data matches at least one profile, an indication that the speech data matches the at least one matching profile is responsively stored.

Abstract: A call is established between a circuit-switched network element and a packet-switched network element. A first call record is generated to record the circuit switched network element's involvement in the call, and a second call record is generated to record the packet-switched network element's involvement in the call. The first and second call records include the same call identification information to identify the call. The call identification information may include an internetwork call identifier, an identification of a carrier or service provider associated with the call, and other information that, in combination, uniquely identifies the call. The first and second call records are stored, e.g., in a centralized call record repository. Call records for a given call can be retrieved based on the call identification information for the given call.

Abstract: A call is established between a circuit-switched network element and a packet-switched network element. A first call record is generated to record the circuit switched network element's involvement in the call, and a second call record is generated to record the packet-switched network element's involvement in the call. The first and second call records include the same internetwork call identifier to identify the call. The first and second call records are stored, e.g., in a centralized call record repository. Call records for a given call can be retrieved based on the internetwork call identifier for the given call.

Abstract: A communication network comprising a first node and a second node. The first node is configured to transfer a first control message for a call having an inbound call path and an outbound call path wherein the first control message indicates a release request. The second node is configured to receive the first control message from the first node and process the first control message to determine if the second node has two legs of the inbound call path. If the second node has two legs of the inbound call path, a second control message is transferred to a third node in the outbound call path wherein the second control message indicates the release request.

Abstract: First and second voice interactive response systems operate in tandem. The first voice response system receives a call from a caller and interacts with the caller to provide information to the caller and/or obtain information from the caller. To make additional media services (e.g., automatic speech recognition or text-to-speech conversion) available for the interaction with the caller, the first voice response system extends the call to a second voice response system that is able to provide the additional media services.