Who they are
Fonus is an independent, privately held carrier founded by Simon Tian, built around heavy international use. In the US it runs on AT&T’s network, with international routing handled through a partnership with Tata Communications. Service is prepaid and sold online through its website and app. Its defining trait is that all calls and texts run through the Fonus app rather than your phone’s native dialer.
Network & coverage
Fonus runs on AT&T’s nationwide network in the US, so domestic coverage tracks AT&T’s footprint, with 5G on a compatible device. Abroad, it leans on roaming agreements with foreign carriers across many countries. One catch worth knowing: because calls and texts route through the Fonus app over data rather than the native network, some users notice added call latency, and lower tiers slow after a monthly high-speed allowance.
How pricing works
Fonus is prepaid and contract-free, with several unlimited talk, text, and data tiers that differ mainly in how much high-speed data you get before throttling, topped by a tier that keeps full speed. Taxes and fees are not included; local taxes are calculated at checkout from your billing address, billed in US dollars. Several billing details, including autopay terms and any price-lock, aren’t documented.
Who it’s for
Fonus suits frequent international callers and travelers who want one line that works across borders with phone numbers in multiple countries, and who don’t mind placing calls through an app. It is less suited to anyone who wants native dialer calling, the lowest latency, or to use the line as home internet, which its terms don’t allow. The alternatives below are worth a look if native calling is your priority.
Hi mahindhar. Have you tried reinstalling the battery? It works for me when my phone won't turn on. Also, try press and holding volume down button + power button at the same time. Let us know if any works.