Apple mobile phone text messages are blocked by gray boxes. What if I can't see myself typing?

Cross out the backstage, and then open it again.

Short message: SMS 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. In 20 14, China Mobile announced that it would create a new service entrance for users in the era of mobile internet through "unified communication". This move is interpreted by the industry as: giving up SMS and embracing unified communication. China Mobile's "new SMS" will be charged according to the traffic.

Birth: 1992 When the world's first short message was successfully sent to a mobile phone through a PC on the GSM network in Wolfen, England, no one would have thought that this cheap short message service introduced by telecom operators to solve the problem of high mobile phone charges would have such a huge impact on people's economic and cultural life and even politics many years later.