You can do so by logging in to your carrier’s website or contacting customer service for assistance. Some network providers also let you do so via their mobile app. Go to Settings → Phone → Change Voicemail Password.Enter the new password.
You can delete individual voicemails as you listen to them, and most networks will automatically delete old voicemails after 30 days. However, few networks offer a simple way of deleting multiple voicemail messages when your mailbox is full – unless you can use an option such as Visual Voicemail, which lets you delete messages with a quick tap of your finger.

3.) This is the mailbox of Mr. John Doe. Please leave a message or call this number again at a later time. Thank you for your understanding.
Are you creating a voicemail greeting for your entire company or team? These business voicemail greetings will do the trick.