In article 'modem speaker', Wolfgang Ernicke wrote:
WE>  EF> The volume control is the ATL1, ATL2, or ATL3.
WE> Not on my Supra28800Fax, it's M M1 M2 maybe your thinking of a diff 
dem.
  Elden is correct.  M# is speaker control, and L# is speaker volume.  Maybe 
you have a different SFM then the rest of us. :}
  - David Radke/Lord Stalker, Guildmaster of Stalker's Guild
 
.^.Hand, n.:
           A singular instrument worn at the end of a human arm and
           commonly thrust into somebody's pocket.
                   -- Ambrose Bierce, "The Devil's Dictionary"
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