Everything is perceived by comparing with other things. When estimating one calling card or another, we often compare it with AT&T phone card. Why?

Let's view what is the matter by considering one after another.

AT&T has rounding (billing increment) 1 minute. This value is so natural for our feeling. So we usually say: "The rate is 5 cents per minute", but we never say: "The rate is 5 cents per half minute" or "per 3 minute".

Well, rounding 3 minutes, which is applied to many calling cards, is also available, but worse than 1.

But rounding 6 minutes, which is applied too, is too worst. Imagine your phone talk was 12 minutes and 5 seconds in length. Then 18 minutes will be deducted from your card balance. So you will lose the cost of near 6 minutes. As you see, this is another kind of extra fees.

On the other hand, cards with 1-second or 6-second billing increments are almost never cost effective because of the higher per minute rates you get charged.

Thus, rounding one minute is the most organic and available for calling cards consumers. It is a standard.

AT&T phone card has no connection/maintenance fees. It's a standard when so, isn't it?

With AT&T calling card you can call from more than 100 foreign countries, i.e. from almost anywhere! Isn't it a standard situation?

This calling card has no expiration, which is great as well. And this is a standard too.

It goes without saying, AT&T is out and away the best calling card in connection quality.

I'm afraid it is possible to find more standards in AT&T phone card if to dig well. But we have had enough of these.

So we have just discovered the wonderful fact - the entire AT&T phone card consists of standard things completely! We can believe it not at once. But this is truly so!

That's why AT&T calling card is always considered to be a standard. We compare each calling card with AT&T one way or another. Sometimes I use these comparisons for spotlighting some merits of other cards in my reviews. This is not the understatement of AT&T. This is the overstatement of a card reviewed.

Read also AT&T Phone Card Review.