Joke Collection Website - Public benefit messages - What is the frequency and time of sending "on-hook SMS"? What are the restrictions?

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

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, 1 7 day). ***7 options, the system defaults to 3 days 1 project), one caller, one cycle and one status, and at most one project can be sent. Sending time: In the SMS preset function of the on-hook SMS platform, the effective sending time can be set through the platform, and the platform defaults to 9: 00-22: 00 on the same day. Click on "official website" Customer Service 2 17 below for more service offers.