A.5.3 Call forwarding on busy (network determined)

03.333G security3GPPLawful InterceptionStage 2TS

Figure A8 shows the interception of call forwarding on busy (network determined). The mobile that activated call forwarding on busy (B) is the target for interception. In this case interception will be performed at the MSC/VLR where B resides, where the busy condition is detected and the call is forwarded.

Figure A8: Interception of call forwarding on busy (network determined)