What if a validated person has cold/ill health and tries to log in using biometrics?

Cold, nasal congestion may affect 2 parameters out of 12 unique distinctions of the human voice. The scoring system will allow the user to log-in, even if the 2 parameters are not acceptable, for that specific day. This setting is done by the implementation team and can be set.No initial investments on scanners/readers as it is voice/telephone-based high or low, based on customer preferences.