Is it legal for China Mobile to unilaterally stop short messages from customers?

There are several possibilities for mobile companies to unilaterally stop short message service:

Sending short messages with sensitive words when using short message service;

Send a large number of short messages by using the short message group sending function.

Acts that other mobile companies consider non-compliant.

For details, please call mobile customer service or consult the local mobile business hall.

Short Message Service (SMS for short) refers to the text or digital information directly sent or received by users through mobile phones or other telecommunication terminals. The number of characters that users can send and receive SMS at a time is 160 English or numeric characters or 70 Chinese characters.