Open a browser and go to Google Messages. Sign in with your Google account details. When you enter your Google login ...

You can change your Google Voice voicemail greeting using your iPhone, Android, PC, or Mac computer.

To delete Google Voice messages, start by accessing your Messages tab on your mobile device or computer.

Even if you don't want to talk on the phone, you should still set up voicemail. On the iPhone, Visual Voicemail provides a transcription of the message, while Live Voicemail lets you prescreen calls.