How to set the SMS rejection of the local one-card, two-number optional package (private service)?

Subnumber SMS Rejection Settings: When it is inconvenient for users to receive messages with sub-numbers, they can send messages with SZDXKF to 1000 1 to set the rejection status of messages with sub-numbers, and users can also send messages with SZDXGB to 1000 1 to set the rejection status of messages with sub-numbers. The short message off state of the secondary number does not affect the user to use the secondary number as the caller to send short messages. "Local one card and two numbers optional package (private connection service)" is launched for prepaid/post-paid Tianyi mobile phone users who have been online for 30 days or more. The user already has the Tianyi number as the main number. On the basis of not changing the phone and card, they can apply for a local network Tianyi number as a secondary number, which only provides voice and SMS functions. For more service benefits, click on "official website" customer service 220 below to answer your questions.