Numbers in the allowlist are allowed to call in/called or both regardless of the Time Condition settings. The priority of allowlist is higher than blocklist.
You probably meet a problem that the number segments of your customers’ phone numbers happen to be listed in the blocklist. Don’t worry about it. allowlist feature allows you to add dependable incoming/outgoing numbers which has higher priority than the blocklist, ensuring a seamless connection between you and your customers.
DNIS (Dialed Number Identification Service)