About the number of SMS center, I always have to set it recently.

The mobile phone number is +86 1380 four-digit area code (if it is less than four digits, use 0 to supplement it, such as 0270 in Wuhan) 500. If it is a Unicom card, it is +86 130 1 four-digit area code (if it is less than four digits, use 0 to supplement it, such as 0100 in Beijing) 500.