First, the phone is activated.
Call the customer service hotline of Bank of Communications (on the back of the credit card): 400-800-9888. Then enter the personal information reserved when applying according to the voice prompt → Bank of Communications credit card activated successfully. You can open a credit card.
Second, online activation.
Download the online banking assistant of Bank of Communications, log in to personal online banking, and enter the account number and password.
The second way can't have mobile phone activation.