What does Doudou information mean?

It is a feature-rich network communication software.

SMS enhancement function: Built-in 28 festivals and 10 blessing SMS libraries, with rich choices. This function allows users to conveniently choose text message content suitable for different occasions without having to write it themselves, saving time and energy. Confirm whether all text messages are sent successfully; unsent text messages are archived and sent after you think about it. The function provides confirmation of the sending status of text messages to ensure that the information can be accurately conveyed to the recipient.