A method for accessing call information communicated between a source terminal and a target terminal over a carrier network, the method comprising: receiving, at a real-time duplication server, hereafter RTDS, context information specified by a user of the source terminal that defines information to be communicated to the target terminal prior to establishment of an audio/visual call between the source terminal and target terminal; converting, by the RTDS, the context information into a visual representation of the context information; and communicating, by the RTDS, the visual representation of the context information to a user of the RTDS; the method characterised by further comprising: receiving, by the RTDS, an instruction to prevent the context information from reaching the target; and communicating, by the RTDS to the carrier network, an instruction to terminate communication of the context information, wherein the carrier network subsequently blocks the context information from being communicated to the target terminal; wherein the carrier network is one of a general packet radio service network, hereafter GPRS network, and a universal mobile telecommunications system network, hereafter UMTS network, and wherein communicating the instruction to terminate communication of the context information comprises communicating, by the RTDS, an instruction to a serving GPRS support Node, hereafter SGSN, of the carrier network to delete a packed data protocol request, hereafter PDP request, initiated by the source terminal. receiving, at a real-time duplication server, hereafter RTDS, context information specified by a user of the source terminal that defines information to be communicated to the target terminal prior to establishment of an audio/visual call between the source terminal and target terminal; converting, by the RTDS, the context information into a visual representation of the context information; and communicating, by the RTDS, the visual representation of the context information to a user of the RTDS; the method characterised by further comprising: receiving, by the RTDS, an instruction to prevent the context information from reaching the target; and communicating, by the RTDS to the carrier network, an instruction to terminate communication of the context information, wherein the carrier network subsequently blocks the context information from being communicated to the target terminal; wherein the carrier network is one of a general packet radio service network, hereafter GPRS network, and a universal mobile telecommunications system network, hereafter UMTS network, and wherein communicating the instruction to terminate communication of the context information comprises communicating, by the RTDS, an instruction to a serving GPRS support Node, hereafter SGSN, of the carrier network to delete a packed data protocol request, hereafter PDP request, initiated by the source terminal. receiving, by the RTDS, an instruction to prevent the context information from reaching the target; and communicating, by the RTDS to the carrier network, an instruction to terminate communication of the context information, wherein the carrier network subsequently blocks the context information from being communicated to the target terminal; wherein the carrier network is one of a general packet radio service network, hereafter GPRS network, and a universal mobile telecommunications system network, hereafter UMTS network, and wherein communicating the instruction to terminate communication of the context information comprises communicating, by the RTDS, an instruction to a serving GPRS support Node, hereafter SGSN, of the carrier network to delete a packed data protocol request, hereafter PDP request, initiated by the source terminal.