Beijing traffic police has always had an expired verification code. What happened?

Beijing traffic police verification code may expire for the following reasons:

1. Mobile phone interception. Many mobile phones will filter short messages, causing the verification code to be intercepted.

2. The signal is bad. Generally, there is a corresponding time limit for entering verification codes. If you are in a place with poor signal, the time of receiving the verification code will be delayed, which will lead to the invalidation of the verification code.

3. The SMS center is busy. In a certain period of time, the local short message traffic is too large, which will cause the short message center to be busy, resulting in the delay and loss of short messages.

4. There is a time limit, usually five minutes, to get the verification code on the traffic control 12 123. If the time limit is exceeded, change the reserved mobile phone on 12 123. After receiving and entering the verification code, the system will prompt that the verification code has expired.

You can take corresponding measures according to these reasons to avoid the expiration of the verification code.