What is the exclamation point in the mobile phone information?

Network problems, number problems, short message content problems, etc.

1. Network problem: SMS is sent through the network. If there is a problem in the network, it may lead to the failure of sending short messages or the appearance of exclamation marks.

2. Number problem: the sent number does not exist or has been cancelled, or your number is blocked on the other party's mobile phone, so the message will not be sent, and an exclamation mark will appear.

3. SMS content problem: SMS content may also lead to SMS sending failure or exclamation point. Sending messages containing sensitive words or sending too many links in short messages may lead to the failure of sending short messages. If the information sent exceeds the maximum number of characters of mobile phone short messages, it may also lead to the failure of sending short messages.

Mobile phone information, usually referred to as short message service (SMS), is the most basic mobile phone service, allowing users to send and receive text messages. Each short message can usually contain 150 bytes of data, which is about 160 characters in English and 70 characters in Chinese. Almost all mobile phones support this function.