You can activate the ringback service through the following methods: 1. SMS method: send "kt" to 10655158 to activate, the communication fee is 0.1 yuan/message. 2. WEB method: Visit Wo Music on your computer, enter your mobile phone number (email), password, and verification code in the login column on the right side of the page. After successful login, you can activate the ringback service. 3. IVR method: You can dial 10155 and follow the voice prompts to order the ring. Currently, it only supports users in Guangdong, Zhejiang, and Anhui provinces. Other provinces will gradually open it. 4. Client method: Install the Wo Music client, click the Wo Music icon on the mobile phone screen, and follow the interface prompts to activate. 5. In addition to the above self-service, you can also call the local 10010 customer service hotline to activate it.

Log in to Wo Music, click on Ringtone Management, and select the ringtone you want to set. If not, you have to buy it yourself! Then check the box and click Set as the default ringtone!