An interface port expansion device (302) allows for more than one terminal equipment (304, 306, 308 and 310) having embedded U-interface termination's to interface to the ISDN via the U interface. The port expansion device (302) can take the form of a separate stand-alone device or...http://www.google.fr/patents/US5787087?utm_source=gb-gplus-shareBrevet US5787087 - Method and apparatus for interconnecting a plurality of terminal equipments to the ISDN
Method and apparatus for interconnecting a plurality of terminal equipments ...
