trueCall Secure offers three levels of protection against unwanted incoming calls so that you can choose the most appropriate for your situation.
Filter Profile - Trusted callers get straight through – all other callers are asked to press a key on their phone to get through. Most telemarketers will hang up at this point so the phone never rings.
Filter (International) Profile - This is the same as Filter, but it provides additional protection against international callers who can only get through if they know the correct two or three digit code.
Trusted Caller Only Profile - Trusted callers get straight through, all other callers are asked to ring the carer or enter a code to get through.