Call Vietnam for 15¢ a minute. Landlines and mobiles. They just pick up.

Calling Vietnam, answered.

• How much does it cost to call Vietnam with Kalum? +

  15¢ per minute to any Vietnamese number — landlines and mobiles, one rate (as of March 23, 2026). Calls are billed per minute with a 60-second minimum, and you always see the current rate in the app before you dial.

• Does the person in Vietnam need the app or internet? +

  No. Kalum routes through real phone networks, so their phone rings like any normal call. They need no app, no smartphone, and no internet — an old landline or feature phone works.

• Can I call landlines in Vietnam? +

  Yes. Landlines and mobiles in Vietnam cost the same 15¢ per minute. Whoever you call answers on whatever phone they already have.

• How do I call Vietnam? +

  Download Kalum on iPhone or Android, sign up with your phone number, and add credit starting from $2.99. Pick Vietnam (+84) in the dialer, type the local number, and hit call.

• Can I call Vietnam from my cell phone? +

  Yes. Kalum runs on your own iPhone or Android, so you call Vietnam straight from your cell phone over Wi-Fi or mobile data. The person you reach picks up on whatever phone they already have — no app or internet needed on their end.

• What is the number format for calling Vietnam? +

  Vietnamese mobiles are 9 digits starting with 3, 5, 7, 8, or 9 (written locally with a leading 0). Drop the leading 0 and dial +84, then the rest of the number. In the Kalum dialer you just pick Vietnam (+84) and type the local number — the country code is set for you.