Intercepting a call connection to a mobile subscriber roaming in a visited PLMN (VPLMN)
First Claim
1. A method, comprising:
- initiating a connection establishment between a calling terminal and a called terminal,requesting, during connection establishment, a subscriber database of a first mobile network, to provide subscriber related information for the called terminal, the first mobile network being a home mobile communication network of the called terminal,detecting that both the called terminal and the calling terminal are located in a second mobile communication network visited by the roaming called terminal;
detecting that said requested information contains an indication that connections to said called terminal are to be intercepted;
establishing the connection from the calling terminal via a gateway functionality of the second network to a gateway functionality of the first network, back to the gateway functionality of the second network and further to the called terminal; and
tapping the established connection between the called and calling terminal at the gateway functionality of the first network,said tapping comprising forwarding duplicates of the intercepted data.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a method for intercepting a connection established in a communication network system between a called terminal (B) and a calling terminal (A), said network system comprising at least two communication networks (HPLMN, VPLMN) having an interface towards each other, said called terminal (B) being registered to a subscriber database entity (HLR, HSS) of one of said communication networks (HPLMN) while being located in another one (VPLMN) of said communication networks, the method comprising the steps of: initiating a connection establishment from said calling terminal (A) towards said called terminal (B), requesting, during connection establishment, said subscriber database entity (HLR, HSS) to which said called terminal (B) is registered, for subscriber related information, detecting that said requested information contains an indication that connections to said called subscriber (B) are to be intercepted, and tapping the established connection between the called (B) and calling terminal (A) at the interface between said networks.
-
Citations
30 Claims
-
1. A method, comprising:
-
initiating a connection establishment between a calling terminal and a called terminal, requesting, during connection establishment, a subscriber database of a first mobile network, to provide subscriber related information for the called terminal, the first mobile network being a home mobile communication network of the called terminal, detecting that both the called terminal and the calling terminal are located in a second mobile communication network visited by the roaming called terminal; detecting that said requested information contains an indication that connections to said called terminal are to be intercepted; establishing the connection from the calling terminal via a gateway functionality of the second network to a gateway functionality of the first network, back to the gateway functionality of the second network and further to the called terminal; and tapping the established connection between the called and calling terminal at the gateway functionality of the first network, said tapping comprising forwarding duplicates of the intercepted data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An apparatus, comprising:
-
an initiator configured to initiate a connection establishment between a calling terminal and a called terminal; a requester configured to request, during connection establishment, a subscriber database of a home communication network of the called terminal, to provide subscriber related information for the called terminal, a detector for detecting that both the called terminal and the calling terminal are located in a second communication network visited by the roaming called terminal; a detector configured to detect that said requested information contains an indication that connections to said called terminal are to be intercepted; an establisher configured to establish the connection from the calling terminal via a gateway functionality of the second network to a gateway functionality of the first network, back to the gateway functionality of the second network and further to the called terminal; and a tapper configured to tap the established connection between the called and calling terminal at the gateway functionality of the first network, the tapper being further configured to duplicate intercepted data. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
13. An apparatus, comprising:
-
initiating means for initiating a connection establishment between a calling terminal towards a called terminal; requesting means for requesting, during connection establishment, a subscriber database of a first mobile network, to provide subscriber related information for said called terminal, the first mobile network being a home communication network of the called terminal, detecting means for detecting that both the called terminal and the calling terminal are located in a second mobile communication network visited by the roaming called terminal; detecting means for detecting that said requested information contains an indication that connections to said called terminal are to be intercepted; establishing means for establishing the connection from the calling terminal via a gateway functionality of the second network to a gateway functionality of the first network, back to the gateway functionality of the second network and further to the called terminal; and tapping means for tapping the established connection between the called and calling terminal at the gateway functionality of the first network, the tapping means being configured to duplicate intercepted data.
-
-
14. A system, comprising
an interface towards at least one other communication network, a subscriber database to which at least a called subscriber terminal can be registered, an initiator adapted to initiate a connection establishment from a calling terminal towards said called terminal, a requestor configured to request, during connection establishment, said subscriber database to which said called terminal is registered, for subscriber related information, detector configured to detect that said requested information contains an indication that connections to said called subscriber are to be intercepted, an establisher configured to establish the connection from the calling terminal via a gateway functionality of the second network to a gateway functionality of the first network, back to the gateway functionality of the second network and further to the called terminal; -
a tapper configured to tap the established connection between the called terminal and the calling terminal at the interface, wherein said interface is constituted by a gateway functionality representing an access point to the network, and wherein the tapper is located at the gateway functionality of a home network of the called terminal.
-
Specification