Can I send a text message on the 400 phone?

400 mobile phones can send short messages in groups:

Provide a self-management platform and send short messages to customers through the self-management platform.

For example, the text message reads 1: "Members, today is your birthday, and all staff of XX wish you a happy birthday!"

Example 2 of the text message: "XXX, XX company's new generation products, officially listed this month. This product has the characteristics of XXXXX. For details, please visit the XXXXX website "Source:/

Note: The content of short messages is supervised by the Ministry of Public Information. If there is illegal content, directly block it.