2. A network abstraction gateway (NAG) according to claim 1 , said means for extracting behavior of said abstracted endpoint (AE) further comprising: means for receiving communication sessions originating from or destined to said abstracted endpoint (AE) via forced routing implemented in said abstracted network (AN); and means for analyzing said communication sessions in order to extract at least said first identity thereof.
2. A network abstraction gateway (NAG) according to claim 1 , said means for extracting behavior of said abstracted endpoint (AE) further comprising: means for receiving communication sessions originating from or destined to said abstracted endpoint (AE) via forced routing implemented in said abstracted network (AN); and means for analyzing said communication sessions in order to extract at least said first identity thereof. 3. A network abstraction gateway (NAG) according to claim 2 , wherein said forced routing is implemented through: switch configuration in said abstracted network and intelligent network or IN based forced routing; calling card usage with two-stage dialing; calling card usage with call back mechanism and two-stage dialing; or an application in a SIM card that implements the forced routing.