We're using Azure AD B2C with custom policies on one of our projects. We enable mobile phone 2FA for all our users.
When a user signs in, they have the option of having their verification code sent via text message or phone call. If they choose the phone call option, the voice that rings them is American and instructs them to press the "pound sign". This is confusing our UK based user base, as we know the '#' symbol as 'hash' and have the symbol '£' for pound (which isn't available on a phone keypad).
I've not been able to find a way to regionalize the tenant or policy. I've found a web page about localizing the language part, but not the region/sub-culture element.
https://docs.microsoft.com/en-us/azure/active-directory-b2c/localization
Ideally we're looking to be able to define the culture settings to 'en-GB' rather than just 'en'. Assuming it would then produce a UK voice that makes no reference to the 'pound sign'? Does anyone know how to achieve this?