What is the frequency and time of sending "on-hook SMS"?

"Frequency: an enterprise can only set one transmission control policy (1 0 day, 1 2 day, 1 3 day, 1 4 day, 1 5 day, 1 6 day,16 day. ***7 choices, and the system defaults to 1 day (1 item). The same caller can send at most one item in the same transmission frequency period. Sending time: The default sending time of on-hook SMS is 24 hours, which can be sent immediately, and enterprises can also set their own time. " Customer service 95 answers for you. Guizhou users pay attention to WeChat payment, check the phone bill with one click, and the traffic, points, bills and detailed bills can be operated by themselves, which is convenient and fast.