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I want to know if its possible to trick this app "Diitalk" into either thinking I am in US or blocking it from knowing that my VPN is working cuz if I dont have a US based IP, it wont let me use the US based number.


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Can this be done on the android device itself without having to use a VPN router or any other device?


(Click on image to enlarge)

Wrichik Basu
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  • Robert has explained it thoroughly. I have gotten similar experience before. While using LetsVPN I get restricted by most apps but then I switched to OpenVPN and boom, problem solved. I think you should also try a new VPN instead. – Mattjoe Dec 29 '20 at 14:03

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VPN detection is usually done on server side.

Diitalk simply has to check your IP and compare it to a list of IP ranges by common VPN providers. If the IP is in the IP range of a known VPN provider it blocks you. This is known as blacklisting.

Therefore the highest change to bypass such a VPN check is to use a custom server and install your own VPN on it. If the server's IP is not in a range used frequently for VPN your VPN may stay undetected.

However the service you are trying to use may use a different VPN detection technique, like whitelisting. The IP ranges from US telecomunication providers are known and one can simply check if the IP is within a range or not. In such a case any VPN provider or self-installed VPN will fail.

Robert
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