Go communication smart, Go Iranfone!

Iranfone.com is my next favorite online communications gadget that I was waiting for for long time.
I've been playing around with lots of different Internet Telephony service providers for the past year or so and none actually were as interesting as this one.
The reason being is most calling card vendors pick the cheapest available routes available which are essentially low quality and unreliable gray routes.
Most of the also are suffering FAS (False Answer Supervision) issue in which you are being charged for the time your call is not connected.
If one compares the wholesale rates of those low quality routes with the rate the calling card vendor is charging at, he/she will find out that the price is almost twice as the wholesale rate; and considering the FAS and extra charges involved, you are paying more than the cost of a premium quality connection.
Nonetheless, I guess that's the way it is, if you opt-in for premium quality service, they won't offset their profit for the customer's good.
Keeping the long story short, that's not the case with IranFone. It provides premium quality service at wholesale price which is a real bargain!
BTW, they also support SIP and I can get my ATA connected to it directly, which is fantastic.