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

A method and apparatus for multimedia communication

A method and apparatus for prioritizing a telephone call...

A method and apparatus for providing bookmarks for audio...

A method and apparatus for reusing service circuit resources...

A method and apparatus for routing calls based on the...