Proto-Eskimo-Aleut?  It's in Bomhard's "little book".  Actually the proto-language itself hasn't been reconstructed by the time the book was written, but a phonology has been proposed, based on Fortescue, Jacobson and Kaplan:
 
p t c k q (c = [tS], or c-hacek)
v D j G R
  l
  L       (= l-curl, the voiceless lateral fricative)
m n   N
 
i   u
  @
  a
 
Notice that voiceless stops, the only kind we got, match with voiced fricatives.  Proto-Uralic and Proto-Dravidian have a similar system of such pairs.
 
I know diddly squat about EA, so that's all I can do.
 
~DaW~
may your children be born naked