For most people, internet calling (VoIP) has replaced international calling cards. A calling card gives you a prepaid balance that you use by dialing an access number, a PIN and then the number you want. VoIP does the same job from an app or a browser with one tap, shows a real caller ID, and can give you a number people can call back. Calling cards still make sense in one case: when you have no internet connection at all.
Key points
- Calling cards advertise low per-minute rates, but connection fees, maintenance fees, rounding and expiry dates often double the real cost.
- VoIP rates are per minute with no access number. On LimePhone, Mexico is $0.032, France $0.0374 and India $0.0992 a minute.
- Calling cards usually show an unknown or access-number caller ID. VoIP shows your own number.
- A calling card works from any landline or payphone with no internet. That is its one real advantage.
How a calling card works
You buy a card with a balance, online or in a store. To call, you dial a local or toll-free access number, enter the PIN, then dial the international number. The provider routes the call over its own network, deducting from your balance.
The fine print is where the cost hides: a fee per connected call, a weekly maintenance fee, rounding up to 3 or 5 minutes, extra charges when the access number is called from a mobile, and a balance that expires a set number of days after first use.
How VoIP calling works
A VoIP service carries your voice over the internet and hands the call to a carrier in the destination country. You call from an app or browser with no access number or PIN. With a service such as LimePhone, the call shows your own US, UK or Canadian number, and the same number receives calls and texts.
Calling cards vs VoIP, side by side
| Calling card | VoIP (LimePhone) | |
|---|---|---|
| How you dial | Access number, PIN, then the number | Tap the number in an app or browser |
| Hidden fees | Connection, maintenance and rounding fees are common | Per-minute rate, no connection fee |
| Balance expiry | Often 30–90 days after first use | No prepaid balance to expire |
| Caller ID | Often unknown or the access number | Your own number |
| Can people call you back | No | Yes, on your US, UK or Canadian number |
| Needs internet | No | Yes, Wi-Fi or data |
Which should you choose?
- Choose VoIP if you have Wi-Fi or data, want a real caller ID, make calls regularly, or need people to reach you.
- Choose a calling card if you will be somewhere without any internet, or you only have a landline.
- Use free app calls whenever the person you are calling has the same app.
How we checked
LimePhone prices and per-minute rates in this article come from the live LimePhone rate table and plan list, checked on October 24, 2026. Rates change; the current figures are always on the rates page and pricing.
Frequently asked questions
Are calling cards cheaper than VoIP?
Headline rates can look similar, but connection fees, maintenance fees, rounding and expiry usually make calling cards cost more in practice. VoIP charges per minute with no access number.
Do people still use international calling cards?
Yes, mainly where internet access is unreliable or for calls from a landline. Most international calling has moved to apps and VoIP.
Can I use a calling card from a mobile phone?
Yes, but calls to the access number may use your plan minutes, and some cards charge extra when called from a mobile.
Does VoIP need internet?
Yes. VoIP needs Wi-Fi or mobile data, roughly 1 MB a minute or less for voice.
What caller ID does a calling card show?
Often an unknown number or the provider's access number. With VoIP on LimePhone, the person sees your own number and can call you back.
About the author
Vincent Hawley writes LimePhone's guides to business phone numbers, international calling and calling over the internet.
More answers
Make calls online
Cheap international calls
Call numbers abroad
- Call a US 1-800 number from outside the USA
- Call toll-free numbers abroad
- Call airlines and hotels abroad
- Call your bank from abroad
- Virtual number for expats
