trueCall holds three lists of phone numbers - the Allow list (the phone numbers of people who you are happy for your child to speak to during their contact hours), a Priority list of callers (friends and family members whose calls will get through to your child at any time of the day or night) and even a Block list (phone numbers of people you don’t want your child to speak to - call centres, etc.).

You can put numbers onto your Allow, Priority and Block lists using the trueCall SIM app or Internet Control Panel.