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If Your Wall Plate Has One Jack For Two Lines
If your wall jack provides one jack for two phone lines, it would be best to use a
“2 Line 3 Way Adapter.” This adapter can be purchased at most stores that sell
electronics. This device creates three plugs where there was one. One jack will
be for your voice line. The other jack can be used for your fax transactions. In
most cases, line 1 (L1) is used for phone calls; L2 is used of faxing. The third
jack (L1+L2) allows access to both lines. This is where you would plug in a 2-
line telephone, if available.
The L1 jack is usually your
voice line
The L2 jack is usually your fax line
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