What does "short message" mean?

SMS, the abbreviation of short message service, is the earliest short message service and the most popular short message service at present. The maximum length can be 160 characters.

Short messages are limited to 140 bytes, and can be text. Short message is welcomed by the public because of its simple and convenient use function, but it always belongs to the first generation wireless data service, and there are technical standards restrictions on its content and application.

Extended data

SMS has the function of sending a message to confirm. This means that SMS is different from paging, and users don't simply send short messages and then believe that the messages have been sent successfully. On the contrary, the short message sender can receive the return message and inform them whether the short message has been sent successfully.

The sending and receiving of SMS messages can be synchronized with GSM voice.

SMS short messages are charged per message, so they are much more expensive (per byte) than data sent over IP-based networks (for example, using GPRS).

Baidu Encyclopedia-SMS