SMS base station is illegal.

Send text messages to everyone in an area.

Hello! This is the function of the mobile base station. Many people use backpack base stations to advertise or send fraudulent information, which is illegal.

When texting everyone, it shows that some messages failed to be sent, but they didn't. ...

A: If the mobile phone can't send short messages, Samsung mobile phones generally suggest the following steps for troubleshooting and handling: check whether you can answer and make calls. If not, please check whether the machine signal is stable and whether the phone bill is sufficient. If the phone is talking normally, but can't send SMS, suggestions: 1. Check whether the number of the information center is correct.