[
    {
        "role": "user",
        "content": "How%20well%20does%20wi-fi%20calling%20work%20with%20Tello%3F%20What%20are%20you%20seeing%20online%20about%20it%3F"
    },
    {
        "role": "assistant",
        "content": "Here\u2019s a detailed look at how well Wi-Fi Calling works with **Tello Mobile**, based on the latest docs, user experiences, and known limitations. If you tell me your device model, I can give more specific feedback.\n\n---\n\n## \u2705 What Tello\u2019s Official Word Says\n\n- Tello includes *Wi-Fi Calling & Text* with its service. It lets you call/text over Wi-Fi when cellular service is weak, like at home, in hotels abroad, etc. ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n- To use it, you need:  \n  1. A compatible phone that supports Wi-Fi Calling. ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n  2. You must enable Wi-Fi Calling in your device settings. ([blog.tello.com](https://blog.tello.com/news/wi-fi-calling-is-now-fully-supported-by-tello-mobile/?utm_source=openai))  \n  3. An *E911 address* registered in your Tello account. This is important for legal/Emergency services requirements. ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n  4. A Wi-Fi network that doesn\u2019t block this kind of traffic (some public/hotel Wi-Fi might interfere). ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n\n- Cost-wise: there\u2019s **no extra fee** for enabling or using it. Calls and texts over Wi-Fi are charged in the same way as regular calls/texts under your plan. Minutes/data allowances standard \u2212 nothing extra. ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n\n---\n\n## \u26a0\ufe0f What Users Are Reporting\u2014The Good and the Not-So-Good\n\nBased on recent forums, Reddit threads and customer reviews:\n\n### What works pretty well\n\n- Many people say Wi-Fi Calling + Text works reliably inside the U.S., especially in areas with poor cellular service (like rural homes, basements). ([reddit.com](https://www.reddit.com/r/Tello/comments/15q5i7k?utm_source=openai))  \n- International use seems okay in some cases: users abroad have successfully received OTPs/texts via Wi-Fi. ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n\n### Common issues & limitations\n\n- On certain trips abroad, some say **Wi-Fi Calling suddenly stops working**, even though settings haven\u2019t changed. ([reddit.com](https://www.reddit.com/r/Tello/comments/15q5i7k?utm_source=openai))  \n- Some devices show that the Wi-Fi Calling toggle doesn\u2019t \u201cstick.\u201d They enable it, but on reboot or network change, it\u2019s off. ([reddit.com](https://www.reddit.com/r/Tello/comments/1k1m921?utm_source=openai))  \n- eSIM vs physical SIM differences: people using Tello\u2019s eSIM sometimes report that Wi-Fi Calling is harder to enable or doesn\u2019t function authentically overseas. ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n- In cases with strong cellular signal, the phone may default to cellular and drop to zero when traveling or moving around. Switching automatically between Wi-Fi and cellular isn\u2019t always seamless. ([blog.tello.com](https://blog.tello.com/news/wi-fi-calling-is-now-fully-supported-by-tello-mobile/?utm_source=openai))  \n\n---\n\n## \ud83d\udd0d Can You Make & Receive Calls Abroad?\n\nMixed experiences. Here\u2019s what seems to be true:\n\n- If **Wi-Fi Calling is properly enabled** (including E911 address), many users abroad can both receive and make voice calls/texts using their U.S. Tello number. ([reddit.com](https://www.reddit.com/r/Tello/comments/15q5i7k?utm_source=openai))  \n- But for some, messages from certain services (banks, etc.) or verification codes may not come through reliably. These are sometimes prevented due to how networks abroad or apps treat foreign SIM Wi-Fi traffic. ([reddit.com](https://www.reddit.com/r/Tello/comments/13k4cwp?utm_source=openai))  \n\n---\n\n## \ud83c\udfaf Device Compatibility + Setup\n\nSome important tips & gotchas:\n\n- **Device support matters**. Your phone must have firmware that supports Wi-Fi Calling, and it should be *certified* on the network. Tello has noted older phones once on Sprint/CDMA had issues versus newer GSM-compatible ones. ([blog.tello.com](https://blog.tello.com/news/wi-fi-calling-is-now-fully-supported-by-tello-mobile/?utm_source=openai))  \n- **Your settings need to be correct**:  \n  \u2022 Enable Wi-Fi Calling in your device \u2012 iOS or Android. ([blog.tello.com](https://blog.tello.com/news/wi-fi-calling-is-now-fully-supported-by-tello-mobile/?utm_source=openai))  \n  \u2022 Have your E911 address registered in your Tello account. ([tello.com](https://tello.com/help_center/how-can-i-use-wi-fi-calling?_language=en&utm_source=openai))  \n  \u2022 Ensure you're using a compatible SIM/eSIM and the correct configuration. Sometimes Tello needs to issue an updated SIM for Wi-Fi Calling to work on certain iPhones. ([blog.tello.com](https://blog.tello.com/news/wi-fi-calling-is-now-fully-supported-by-tello-mobile/?utm_source=openai))  \n\n---\n\n## \ud83d\udd0e Overall: How Well Does It \u201cWork\u201d in Practice?\n\n| Scenario | Likelihood of \u201cIt works smoothly\u201d | Major Risks or Issues |\n|---------|-------------------------------------|------------------------|\n| At home/office in U.S. with stable Wi-Fi | High \u2014 many users find it reliable for call/text backup | Need proper setup; if ISP/router blocks some traffic, issues may happen |\n| Traveling internationally with Wi-Fi available | Probably works for many, but **intermittent failures** reported | Verification codes might fail; some networks block certain incoming texts; inconsistent app support |\n| Using eSIM vs physical SIM | Physical SIM maybe more reliable historically, but eSIM increasingly supported | Some device-network combinations seem under-certified or limited abroad |\n| Strong cellular + moving around | Might default to cellular; switching can drop audio or calls | Signal drops, configuration glitches |\n\n---\n\nIf you tell me the **make/model of your phone** (e.g. iPhone 14, Pixel 7, etc.), and whether you plan to use Wi-Fi Calling mostly inside the U.S. or abroad, I can give more tailored feedback for your situation."
    }
]