A method and apparatus for connecting networks of different types of transmission wherein, in a first network, the data are transmitted in a circuit-switched manner, and in a second network, the data are packet switched and transmitted connectionlessly on the lower three protocol levels. To be able to...http://www.google.fr/patents/US7006492?utm_source=gb-gplus-shareBrevet US7006492 - Method and apparatus for connecting networks of different types of transmission
Method and apparatus for connecting networks of different types of transmission