An MDSL modem is provided that is inter-operable with an ADSL modem. The present invention provides a method for modem operation, by dividing available bandwidth for the modem into a plurality of subsets, selecting at least one of the plurality of subsets for use as a communication path, reducing the...http://www.google.fr/patents/US6044107?utm_source=gb-gplus-shareBrevet US6044107 - Method for interoperability of a T1E1.4 compliant ADSL modem and a simpler modem
Method for interoperability of a T1E1.4 compliant ADSL modem and a simpler modem