Abstract: A system for adding internet functionality to a telephone call between a first caller and a second caller. The system comprises a telephony application, responsive to receiving a source telephone number associated with the first caller and a destination telephone number associated with the second caller, for extracting the numbers. A first query is constructed using the source number to access details relating to the first caller and a second query is constructed using the destination number to access details relating to the second caller. An internet related function is then performed in accordance with these details. The internet related function may be to record a telephone conversation and email it to the callers, or to email call or caller details to each of the callers, or to exchange files, such as word processing documents and images etc.

Abstract: The invention relates to a method for executing, in a computer system 5, a device driver 10 which is used by a number of applications running on that system. A first 12 and second version 11 of the device driver are provided, with the first version being optimised and the second version containing debug code for providing trace information. Upon discovering a problem with the device driver, it is possible to selectively switch to the debug version of the code without any of the applications already using the device driver being aware of the switch. Having gathered the necessary trace data, it is then possible to transparently switch back to the optimised version. Conventionally, device drivers form part of the operating system within a computer and so are difficult to remove and re-load without taking the whole system down and re-booting.

Abstract: A computer telephone relay service for interfacing between a textphone and a telephone. A textphone call is made to the computer which makes a further call to a telephone or vice versa. The computer then translates the messages between the text-phone and telephone using voice recognition and text-to-speech hardware.