Received call from (302) 233-7401.  Called it back - was instructed to "Press 1 to continue", received recorded message from the "Alpine Adherence Line", and further instructions to press "1" to report an absence.  It appears this is a "sick line" to report absences for people working in a call center - if they're absent, they're "out of adherence"...  Why I was called by this number is anyone's guess...!