Why did sending the verification code of telecom charging capacity fail?

There may be several reasons why telecom fails to send verification code when charging traffic:

1. Operator's network reason: It may be due to the local network failure of the telecom operator, resulting in information service interruption or system upgrade at night, resulting in some segments being unable to receive information.

2. Enterprise business system reason: It may be that the interface failure of business system leads to the failure of SMS verification code request. In addition, in order to prevent verification code bombing, enterprises may set the receiving limit of a single number segment to be too low, for example, each number segment can only receive three times a day, or only receive 1 time every half hour.

3. Reasons for the third-party information service platform: It may be due to the poor channel quality of the service provider and insufficient system carrying capacity when encountering high concurrency, resulting in speed delay or packet loss failure.

4. User's reason: It may be that the user number is in arrears and stopped, resulting in the inability to receive the verification code. In addition, the user may have turned on SMS interception, which makes it impossible to receive the verification code.

If the verification code fails to be sent, it is recommended to contact the customer service of the corresponding operator to solve it.