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?
Hi, you have reached …. Please leave your name, phone number and a message and if we like it we will return your call.

You can also go to Settings → Phone → and make sure you see Change Voicemail Password.
Set Up Visual Voicemail on Your iPhone 6S. As mentioned earlier, before you try to set up visual voicemail, make sure you have it activated on your phone and that your carrier allows it. If your phone isn’t capable of using visual voicemail, then simply move on to the next method. Step 1: Go into the Phone app, and then tap the voicemail tab.