How to check whether the SMS center number is correct?

The number of the short message center is the short message server. SMS sent by mobile phone needs to be sent to SMS center number first, and then forwarded to the other mobile phone by SMS center number, which is equivalent to a SMS relay station. If you are currently using a vivo mobile phone, the method for checking the numbers of various SMS centers is as follows:

Funtouch OS 9 and above: Settings-(Applications and Permissions)-System Application Settings-Information-More Settings-SMS Center Number

Funtouch OS 3.0 and 4.5 systems: Settings-Information-SMS Center Number

Funtouch OS 3.0 following systems: Information-Click the "menu key" at the lower left-More-Settings-SMS center number.