G.Lite (ITU G.992.2)
Due to the problem of POTS splitters, the ITU ratified ITU G.992.2 for splitterless service. This offers the services of ADSL, but at a lower speed. It also is intended to ease installation because a POTS splitter typically requires professional installation.
Even though G.Lite is a splitterless option, it still provides POTS service by reducing the transmission power used to send digital information when the modem detects that the analog telephone handset goes off-hook, either for a voice or fax session. Because there is a new power level used to modulate the line, a fast-retrain procedure occurs with the ATU-R to establish proper power levels. This results in a slight cessation of service of about 1 to 2 seconds ...
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