When calling on iPhone, life is like this, happy every day

Life is just like this when you make a call on your iPhone. You are happy every day. This is because the other party’s mobile phone has enabled mobile color printing.

Mobile color printing is a value-added service that transmits additional information during the user's call. During the call between the calling and called users, the system automatically pushes the color printed information (mood, jokes, business information, etc.) preset by the user to the other party's mobile phone, so that the other user can see the color printed information after the call ends. To achieve the purpose of showing personality, sharing mood, and conveying business information.

Users edit the text message content "KTCY" and send it to "10086" to activate.