The present invention provides an effective way for Telecom operators to provide ADSL service to customers who are receiving POTS service over a pair gain system or who are connected to ISDN. According to one embodiment of the invention, an ADSLNDSL (Very High Speed DSL) splitter is integrated in the...http://www.google.es/patents/US6272219?utm_source=gb-gplus-sharePatente US6272219 - Access network with an integrated splitter
