Can the SMS function of mobile phone number be unlocked after being blocked for the second time?

The SMS function of mobile phone number is blocked for the second time, and can be unlocked by calling the customer service hotline for the first time. Being blocked for the second time, you need to go to the mobile business hall to go through the formalities and sign the guarantee. The third time will take half a year to unlock.

1, SMS is automatically blocked. Generally, short messages sent to others contain sensitive words. Or sending text messages to others in groups, including sensitive words or selling something, are regarded as spam messages.

2. If you want to reopen the SMS function, you usually dial 10086 for the first time. If you are blocked again, you can only go to the local business hall with your ID card and mobile phone card. If you want to write a letter of guarantee, you can't send similar messages in the future.

Extended data:

The main reasons why SMS is blocked:

1, including illegal content, such as destroying social harmony, will be blocked.

2. SMS contains special symbols. The so-called special symbols refer to symbols that are not commonly used in daily life, such as @, #, @,% and so on.

3. Different regions have different shielding words and degrees.

4. Unknown channel exception

Ways to avoid sending short messages being blocked:

1) Replace some marginal words or taboos. Here you can divide the short message into several sections and send them separately. If the content is not received, it is proved that the fragment contains blocked words, and so on until the blocked words are found and modified.

2) When testing SMS, the mobile phone should be the same as the destination's mobile phone number. If it is sent to Shanghai Mobile, it should be tested with the mobile phone number in Shanghai, because SMS shielding is mainly aimed at mobile phone numbers, and the shielding methods, shielding words and shielding degree are different in each region.

3) There are more and more areas where numbers are blocked, especially landline numbers. In this respect, if the input method is switched to full-angle input, the risk that the short message content is blocked due to numbers can be avoided.