argante Try: Phone -> Settings -> Blocked numbers and set options:
No such settings.
Settings > [search: call, number, blocked] --> no result
In any case, I am afraid I do want numbers I do not know to contact me. I want to blacklist callers that become abusive.
Its only in certain circumstances I want to curate a whitelist for all callers, perhaps on a per-profile basis. I believe whitelisting should be included in a general GOS Caller Management Toolkit.