Android phones can access voicemail by holding down the 1 key on the dial pad until the phone dials your 10-digit phone number. You will automatically connect to your mailbox and be prompted to enter your temporary password; this password is the last 4 digits of your phone number followed by the # key. Start the Google Voice app. Tap the three horizontal lines at the top left of the screen (sometimes called a hamburger menu), and then tap “Settings.” In the Voicemail section, tap “Voicemail greeting.” Tap “Record a greeting.” How do I access my voicemail? To call your voicemail on an Android phone, simply open your phone’s dial pad and hold your finger down on the “1” key. You can also call your voicemail from a different phone by calling your own number and tapping the pound key. How do you check your voicemail?
1. Some mobile phones have a Voicemail app easily accessible from the get-go. To start the voicemail setup process, just tap on the Voicemail app and follow the on-screen prompts.

His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.
Method 1 of 2: Deactivating Your Voicemail Manually Access your Voicemail settings. Some phones offer an option to turn off your voicemail via the settings. Deactivate your Voicemail via settings. If you're lucky, your phone will come with an option to deactivate your voicemail service. Input a phone code. ... Test to ensure your voicemail is deactivated. ...