How does the telecom mobile phone card restrict itself from sending short messages?

Cell phones can only make calls, not send text messages. It may be that the SMS function is not turned on or there is a problem with the SMS function setting.

Users can directly dial the phone and transfer the manual service according to the voice prompt, and ask the customer service staff to help check whether the SMS function of the mobile phone number is normal. If the SMS function is normal, directly ask the customer service for the number of the local telecom SMS center.

Enter the SMS interface, click the menu button, enter the SMS setting interface, select the SMS center number, and then modify the setting to the local telecom SMS center number just consulted.