Fidelity used to be a simple login name + password. Since last month they want to send an OTP as well which can only be bypassed by calling them and getting voice verified, which is what I've been doing. My account has my brother's MI address and phone number and I don't want to bother him for an OTP each time. Last time I called Fidelity I asked if they could OTP to an international number ("as I am traveling and don't have access to my US phone"). No, they aren't set up for international OTPs yet.
So, if I don't want to call in every time I guess my only option is to set up a US mobile no. to receive OTPs. Anyone done that? Specifically for Fidelity? Fidelity are a nosy lot and will be quick to restrict an account if they think the holder is non-US-resident.