A. The blacklist is used to filter the number. If a number is in the blacklist, the user will not be able to dial out or dial in. The whitelist is used to put the number in the trust field.
1. You can input numbers with patterns in blacklist/whitelist.
E.g. if you want to restrict the number starting with 0592 from being dialed, but allow calling the number range of 05925503301-05925503309, you could put “0592550330z” in the whitelist and “0592” in the blacklist.
2. Whitelist has higher priority than blacklist.