Device and method for detecting the absence of a POTS splitter in a digital subscriber line

摘要

A device for detecting absence of a Plain Old Telephony Service or POTS splitter (203) on a Digital Subscriber Line (204), comprises:- means (221) for collecting channel transfer function data (301) for the Digital Subscriber Line (204); and- means (222) for detecting a single hole in the channel transfer function data (301).