It's worth noting that, at that scale, you actually get PAID for inbound calls. At MagicJack, the cost of our went into the negative because of access fees. Eve

It's worth noting that, at that scale, you actually get PAID for inbound calls. At MagicJack, the cost of our went into the negative because of access fees. Even though Amazon is not a carrier (yet), they will likely work a deal to get paid. Vonage does the same thing. They receive a revenue share of the access charges from level 3.