Is it blocked if the number of SMS messages sent by mobile phones is too large?

Really will! SMS blocking mechanism is that more than 100 messages sent within one hour will be blocked. If the customer's short message is too long, it will be cut into several segments by the system, and sometimes it will be mistaken for sending too many short messages by the system. Mass short messages are sometimes mistaken for mass advertising short messages by the system, so the short message function will be limited. To open it, you need to write a letter of guarantee and apply to the mobile company, which will take about ten working days to recover. My colleague just joined the company today and sent a normal short message, but it was blocked. My colleague uses a mobile phone. Unicom and telecom are similar.