Help Center

Wi-Fi Calling and Text is a great way to stay connected when cell signals are weak or when you're traveling abroad. Before you can use it, you need to complete a quick two-step setup: one in your Tello account and one on your phone.

Step 1: Register Your E911 Address
For safety reasons, you must have a US emergency address on file before the feature will activate.

1. Log in to your Tello account and go to My Settings.
2. Under the Wi-Fi Calling section, click Edit next to "Emergency E911 Address."
3. Fill in your USA address and click Save.

Step 2: Enable the Feature on Your Phone

• On iPhones:
  1. Go to Settings ≫ Phone.
  2. Tap Wi-Fi Calling and toggle it ON.
  3. Tap Update Emergency Address and confirm your details.
• On Androids:
  1. Open your Phone/Dialer app.
  2. Tap the Menu (three dots) in the top right corner.
  3. Go to Settings ≫ Wi-Fi Calling and toggle it ON.

✅ Pro-Tip
Once Wi-Fi Calling is active, you can receive One-Time Passwords (OTPs) and verification texts from your bank even if you are outside the US. Just keep in mind that while standard texts (SMS) work over Wi-Fi, picture messages (MMS) do not.

⚠️ Warning
Wi-Fi Calling relies on the specific Wi-Fi network you are using. Some public networks (like those in certain offices or hotels) may block Wi-Fi Calling traffic, which is outside of Tello's control.

Next Steps

• Check our International Calling page to see which of the 60+ countries are included in your plan for free.
• For a deep dive into how this feature works, visit our Tello Blog.
• If the toggle on your phone won't stay "ON," double-check that your E911 address was saved successfully in your Tello account first.