@Lidosteut67
YES, these comments are perfectly understandable 😠
However, Swisscom is a telephone operator for Switzerland and Liechtenstein, so 2FA is only accepted for telephone numbers from these two countries.
This also applies to incoming call forwarding, where the phone number to be forwarded to must be from Switzerland or Liechtenstein.
It's possible that in the future, if Swisscom has a more international outlook, numbers from other countries will be accepted for 2FA.