According to the phonetic description of Icelandic I was taught
voice is phonemic in the following Icelandic sounds:
j
l
m
n
r
And as far as I can tell with English voice is phonemic in
the following sounds:
f
t
p
k
s
sh
ch
It would seem that there is no overlap between the two languages!
Sounds that occur as either voiced or unvoiced in Icelandic exist
only in one variety in English - and vice versa.