On Fri, 29 Aug 2014 07:58:52 -0700, Charles Bishop wrote:

If I understand you correctly, your monthly charge (neglecting the cost
of the $125) is $55.

Yes. That's about right.
About $50 a month for Internet, and about $4 or $5 for Oooma taxes.
The Oooma itself is about $125 at Costco, and is a one-time charge.
Of course there's also the hardware telephone.

But, after that, all calls to the USA are free, for life.
If you make believe you are in the USA, then all calls from, say, Australia,
to the USA are also free. Likewise for all calls from India to the USA.

So, the scammers *could* be getting their calls to the USA for nearly free
(all they need is an Internet connection & pay the $4 or $5 a month USA
taxes).