1. To set up AT&T basic voicemail, from the clock screen, press the Power/Home button.
   Note: These instructions will set up your Galaxy Watch's voicemail box. To set up your phone's voicemail box, access your voicemail box by selecting and holding the 1 key from your phone.
   
2. Rotate the bezel to and select the Phone icon.
   
3. Select the Keyboard icon.
   
4. Select and hold the 1 key then follow the phone prompts to set up voicemail. 
   Note: View Access AT&T Basic Voicemail for tips to manage your voicemail. Go to Troubleshoot Voicemail for solutions to common voicemail problems.