Online

• 1). Access the T-Mobile website, then register for an account. Click "Login/Sign Up" in the top menu to register. Log in to the account using the mobile phone number and password you created.
  
  
• 2). Click "Shop" in the top menu, then select "CallerTunes."
  
  
• 3). Click "Manage CallerTunes."
  
  
• 4). Search for a new CallerTune, then click "Buy" to purchase the tune. Select "Manage CallerTunes" to change the default tune to the newly purchased tune.
  
  
• 5). Click "Save" to apply the changes made.
  
  

T-Mobile Handset

• 1). Dial *8863 from your T-Mobile mobile phone.
  
  
• 2). Listen to the greeting, then select "Listen and Buy."
  
  
• 3). Select a CallerTune to purchase, then confirm the order.
  
  
• 4). Select the menu option to assign the CallerTune as the default. Hang up the phone after confirming the settings.