2. Install software similar to 360 Mobile Guardian, and bring your own call show. You can set the avatar photo in the call show. After the setting is successful. If you want to display your avatar on the other party's mobile phone, you must ensure that the other party has installed the same software as you, such as 360 Guardian, and be sure to connect to the Internet, so that when you call the other party, the other party's mobile phone will display your avatar.