How to turn on caller ID on Unicom card?

Henan users can send short message "KTLDXS" to 100 10, dial 100 10 customer service phone, or manually apply for opening Henan Unicom's caller ID service through the business hall. If 4G users do not choose caller ID when accessing the network or changing packages, they need to bring their ID cards to open caller ID service through the business hall. Because different cities have different opening methods, if you are a user in other cities, you can find out through the business hall or customer service.

Not enough traffic? Half a year's traffic is easy to get! The flow is not cleared across months and is valid for half a year. Click /sAAGl to enjoy a 20% discount!