Abstract: In a prepaid group service, a number of subscribers belonging to a group share one common prepaid group account. In order to minimize the risk of an improper call release, an undercut of the prepaid group account is determined (305) on the basis of at least one parameter; and the undercut is used when deciding (309) if a call, charged from the prepaid group account, can be set up or continued when there is at least another ongoing call which is charged from the prepaid group account.

Abstract: A method and system for allowing a user to dynamically pre-determine the duration and/or cost of a domestic or international long distance call is provided. For a selected outbound originating long distance call, the user is given the opportunity to determine the duration or the cost of the long distance call. In one embodiment, the customer dials *XX and the terminating phone number, where XX are predetermined digits. The originating central office recognizes the *XX code as requiring the invocation of an Advanced Intelligent Network (AIN) platform to allow the user to pre-determine the duration and cost of the call. Instructions are provided to the user for setting the length of the call to be connected and the calculated cost of the call would be communicated to the user. Before the call is to be connected to the terminating (dialed) number, the customer may be given the option to reset the duration and cost of the call.

Abstract: A conditioner unit is wired in parallel with a pair gain test controller used to test a digital loop carrier telephone network. The conditioner unit senses a signal intended to request test results from the pair gain test controller and provides a response signal which indicates that the pair gain test controller performed a successful test, even though the pair gain test controller was not activated. This allows testing of the network without use of a bypass pair or the need to interface the digital loop carrier network with the pair gain test controller.

Abstract: A method, a system and a master terminal for line monitoring in system comprising a telephone network (ISDN), a master terminal (MASTER) connected to a place of reception (PR) of a response and to the telephone network (ISDN), and a slave terminal (SLAVE) connected to an object being monitored (OM) and to the telephone network (ISDN).

Abstract: A predictive model system is used to detect telecommunications fraud. Call records (CDRs) provided by telephone companies are evaluated against specified rules. If one or more rules are matched, the system generates an alert. Pending alerts for a customer form a case, describing the caller's calling patterns. A predictive model determines a score that is predictive of the likelihood that the call involved fraud. Cases are queued for examination by analysts.

Abstract: A system and method for capturing signaling units at international gateways in a communications network is disclosed. The signaling units are processed to determine the source and destination networks for the associated calls. The country code, nature of address field, destination point code and origination point code is used to process each message. Data about the messages that pass through the international gateway is stored to a memory device. The data can be recalled for each originating or destination network in the form of performance or quality of service statistics.