摘要:
The public network position (OV) is required for carrying out implemented functions such as monitoring information on called subscribers when said functions are unavailable due to the use of the affected terminal equipment, e.g. direct inward dialing extension (PN), by many subscribers. According to the invention, executing telecommunication connections over a public network position is achieved by signaling subscriber related information to the network position via an existing signaling channel during every connection setup.
摘要:
A method and a display system for graphically presenting information concerning a signalling network. On a display screen (10; 100) a message source and a message destination are represented by respective vertical lines (12, 14) each with a label denoting its location. The message passing from source to destination is represented by an arrow (16) joining the location lines (12, 14), the arrow pointing in the same direction as the message and having an associated label indicating message identity and/or other selected message parameters. Further message source and destination locations are denoted by further vertical lines, but only if the location is additional to a location already displayed, otherwise an already displayed line is utilised to denote the relevant location. Further messages are denoted by further labelled arrows, each successive message that is being monitored being denoted by a further arrow at a lower place on the display than the arrows denoting previous messages. Thus successive items are added to the display in a non-overlapping bottom-down manner. The resultant display is a logical pictorial representation of telephone network traffic, e.g. the occurrence and progress of messages selected to be monitored for the purposes of fault analysis, call-tracing, and fraud prevention. The display is more easily and quickly comprehended by an operator than the conventional traffic monitoring display of successive lines and paragraphs of purely alpha-numeric text.
摘要:
A telecommunications network (10) comprises a set of service provider/operator domains (20), including mobile telecommunications domains (20A-20C). A call-originating domain (20F) accesses a mobile subscriber number portability database (30F) to obtain the address of the gateway node (GMSC) of the telecommunications domain which currently serves a called mobile subscriber having a mobile station (70), and optionally the address of the home location register (HLR) of the called mobile subscriber. The address of the gateway node obtained from the database (and optionally the address of the home location register) are included along with the directory number (MSISDN) or IMSI of the called mobile subscriber in a routing message for completing the call. When changing service providers (e.g., changing to a new domain), the mobile subscriber number portability database is updated to reflect the change. Access of the database and usage of the address of the gateway node of the new domain in the routing message permit the mobile subscriber to retain the same MSISDN when changing service providers.
摘要:
Increased network security is provided by monitoring (in 28) in real time one or more characteristics or attributes of telephone calls that are placed through the network (10) and notifying the network customer, (at 38, 42 or 44), in real time, when the attributes are indicative of abnormal or fraudulent network usage. The subscriber, once notified of the abnormal usage, is in a position to take steps to minimize unauthorized network usage. For example, the subscriber can selectively block network usage, deny access to the network on a call-by-call basis, or trace the call to catch the unauthorized user while the call is still in progress.
摘要:
The invention relates to tracing of a malicious call to be implemented in a telecommunications network, especially in a mobile communication network. The inventive idea is that the called subscriber activates the tracing service in real time on finding the call to be malicious. One way of activating the tracing service is a service code sent from the called subscriber's terminal equipment and defined by the operator. The means required for implementing the service may be located according to the operator's wishes either in a mobile services switching centre or in an intelligent network.
摘要:
A telecommunications network (10) comprises a set of telephone service operator domains (20), including domains (20A - 20C) having intelligent network-type services having non-geographic telephone numbers. A call-originating domain (20G) accesses a non-geographic service number database (30G) to obtain address information concerning the domain which currently handles the called service (90). The address information obtained from the non-geographic service number database includes the address of a node in the domain which handles the service, e.g., the address of a gateway node (GW), and optionally the addresses of a service switching point (SSP), a service control function (SCF), and a service data function (SDF) which handles the called service (90). When changing telephone service operators (e.g., changing to a new domain), the non-geographic service number database is updated to reflect the change. Access of the database and usage of the addresses obtained therefrom in the routing message permit the service (90) to retain the same directory number when changing telephone service operators.
摘要:
Increased network security is provided by monitoring (in 28) in real time one or more characteristics or attributes of telephone calls that are placed through the network (10) and notifying the network customer, (at 38, 42 or 44), in real time, when the attributes are indicative of abnormal or fraudulent network usage. The subscriber, once notified of the abnormal usage, is in a position to take steps to minimize unauthorized network usage. For example, the subscriber can selectively block network usage, deny access to the network on a call-by-call basis, or trace the call to catch the unauthorized user while the call is still in progress.
摘要:
The invention relates to tracing of a malicious call to be implemented in a telecommunications network, especially in a mobile communication network. The inventive idea is that the called subscriber activates the tracing service in real time on finding the call to be malicious. One way of activating the tracing service is a service code sent from the called subscriber's terminal equipment and defined by the operator. The means required for implementing the service may be located according to the operator's wishes either in a mobile services switching centre or in an intelligent network.
摘要:
A first service control point (SCP) for providing law enforcement related call interception capability and a second SCP for providing conventional Intelligent Network (IN) subscriber service features are both provided within an IN based telecommunications network. Two types of trigger flags are then associated with a service switching point (SSP) serving a particular subscriber. Where a first trigger flag associated with call interception is set, a query signal requesting interception routing instructions is transmitted from the serving SSP to the first SCP using a pre-stored network address. Where a second trigger flag associated with an IN service is set, a query signal requesting IN service routing instructions is transmitted from the serving SSP to the second SCP using a directory number associated with the associated subscriber.