Abstract: An intermediate data transmission device arranges for mutual authentication between itself and a remote terminal to allow data to be exchanged between the remote terminal and a server through the device. The server sends first and second key codes to the intermediate device, the key codes both being derived from a shared secret known to the server and remote terminal but not to the intermediate device. In response to a challenge from the intermediate device the remote terminal uses the shared secret to generate a duplicate of the first key code and transmits the duplicate to the intermediate device. The intermediate device compares the first key code and the duplicate of the first key code received respectively from the server and the remote terminal to verify the authenticity of the remote terminal.

Abstract: An intermediate data transmission device arranges for mutual authentication between itself and a remote terminal (4) to allow data to be exchanged between the remote terminal (4) and a server (1) through the device. The server (1) sends first and second key codes (CK, RK) to the intermediate device (step 105), the key codes both being derived from a shared secret known to the server and remote terminal but not to the intermediate device. In response to a challenge (107) from the intermediate device the remote terminal (4) uses the shared secret to generate a duplicate (CK*) of the first key code and transmits the duplicate to the intermediate device (step 109). The intermediate device compares the first key code and the duplicate of the first key code (CK, CK*) received respectively from the server (1) and the remote terminal (4) to verify the authenticity of the remote terminal (4).

Abstract: The invention provides for a voice platform to monitor a conversation between a call centre agent and a caller to identify any predetermined keywords or phrases used in the conversation therebetween. These keywords or phrases can then be used to interface into an existing knowledge management system in order to allow information from the system to be pushed to the agent, thus improving agent efficiency. In a preferred embodiment additional processing is provided which generates an information item score based in the detected keywords or phrases, and those information items with the highest scores are then pushed to the agent, by displaying shortcuts to the information to the agent in the form of a shortcut tree.