A calling plan is suitable for heavy users who need to call a specific destination. A calling plan offers you a certain number of minutes to the country or countries of your choice (e.g., 1000 minutes to India) at a better rate than a “Pay as You Go” rate. Keep in mind, all calling plans expire one month within their initial purchase date. If you need to contact numbers worldwide, then “Pay as You Go” credits are probably a better choice for you.