A mass-scale, user-independent, device-independent, voice...

A message arrangement and method for implementing a digital...

A method and a device for telecommunication

A method and an apparatus for exchanging information between...

A method and an apparatus for requesting a service in a network

A method and an apparatus for terminating a user from a...

A method and an arrangement for generating a ringing signal

A method and an arrangement for securing an adsl connection

A method and an arrangement for securing an adsl connection

A method and an arrangement in a subscriber line interface...

A method and an arrangement relating to functions in a...

A method and apparatus for an improved analog echo canceller

A method and apparatus for anonymous call redirection in a...

A method and apparatus for audio teleconferencing a...

A method and apparatus for charging for an outgoing voice...

A method and apparatus for determining whether a fee is to...

A method and apparatus for estimating quality in a...

A method and apparatus for finding a mobile radio terminal

A method and apparatus for improving the utility of speech...

A method and apparatus for message transmission verification