The cancellation methods for related content of AiMusic-AiTing 4G client are as follows: 1. Unsubscription of colorful ringtones: You can call the customer service hotline 10000, log in to the China Telecom online business hall, or go to the local telecom business hall to cancel the colorful ringtones. The ring tone function is logged out. 2. Unsubscription of iTing 4G advanced rights and interests: You can unsubscribe iTing 4G advanced rights and interests by calling the customer service hotline 10000, logging into the online hall or going to the local telecommunications business hall. Note: Log in to China Telecom's online business hall and click: Do Business - Order Business Inquiry - My Business to cancel. 3. Delete color ring tones: When the personal ring tone library reaches the subscription limit, when ordering ring tones again, iTing 4G will remind the customer that the subscription is full, and select the earliest ordered colorful ring tone to remind the customer whether to delete it. If the colorful ring tone is If the personal default ringtone is selected, the next oldest colorful ringtone will be selected to remind the customer to delete it. After confirmation, the ringtone will be deleted from the personal ringtone library and the order will be completed. Otherwise, the customer will be reminded that the order operation failed. It should be reminded that when you go to the local telecommunications business office to cancel, you need to bring relevant information with you. For other instructions, please refer to Telecom 10000. Customer service 39 will answer your questions. The broadband service can be self-service troubleshooting, which is simple and easy to operate. In addition, it can handle work order inquiries, ITV troubleshooting, broadband applications and password services, which is convenient and fast. For more functions, please pay attention to China Telecom Guizhou customer service.