The present invention relates to a frame relay interworking service control method using a permanent virtual connection, whereby a frame relay subscriber's service information is registered to ATM exchange system, ATM exchange system inner path to the frame relay connection due to registering the frame...http://www.google.es/patents/US6222844?utm_source=gb-gplus-sharePatente US6222844 - Frame relay interworking service control method with ATM network using a permanent virtual connection
Frame relay interworking service control method with ATM network using a ...