In telecommunications circles POTS is short for "Plain Old Telephone Service", ie a standard wired landline.
Perhaps now POTTS may mean "Plain Old Tenor Telephone Salesman".
This guy has an amazing talent: he doesn't miss a note, his timing is perfect, and although I don't listen to much opera (heck, I don't really
like opera) Paul Potts sounds to me as good as any I have heard.
Go get 'em Paul!