Set up voicemail, check messages, and change or reset password.
INSTRUCTIONS & INFO
To set up AT&T basic voicemail, from the clock screen press the Power/Home button. Note: When NumberSync is enabled, calls to primary device will route to primary VM box. These instructions will set up your Gear S3 voicemail box. To set up your phone's voicemail box, access your voicemail box  by pressing and holding the 1 key from your phone.
Rotate the bezel, then select the Phone icon.
Select the Keypad icon.
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.