Call Trax Pro has the lowest pricing options for the small, mid, and large users. Our Call Tracking numbers cost $2.50 per month per number AFTER the first (6) six that come with your account. If you need over 50 numbers in your account we can give a bulk discount for yearly payments. Our standard monthly account is $42.00 dollars plus any taxes or other governmental fees. The first 500 minutes of use are included in this amount. If you use more than 500 minutes monthly, you will be billed at $.025cents per minute. Yes, that is two and a half cents per minute which, is the lowest price online today!