VSTR last move before going dark was to acquire Pervasip's entire VOIP business.
They got it quite cheap, too.
Since ValueSetters purchased Pervasip entire revenue stream, I was eager to see how much revenue they would show for an entire quarter of VOIP App "subscriptions". Pervasip never disclosed what was their mobile VOIP revenue, relative to their old "landline" business.
Alas, it was not to be.