You may be prompted to input a password if you have any security functions in place. Input your password to continue. If you are still prompted for a password input even if you do not have any security measures in place, all you have to do is type in the last four digits of your phone number.
There are two popular apps to perform this service: Slydial and WhatCall. While Slydial used to be the market leader, it’s since been flooded with poor reviews due to the service only working sometimes. WhatCall continued to work for a time, but as of February 2021, also appears to be having major issues and is only working sporadically.

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?
«The phone rang in Clark Taylor's house at nearly three in the morning. He answered it only after the FIFTH ring. Although nearly ten years had passed since THEIR last meeting, Clark was able to recognize the voice. It belonged to Martin Hall, one of the BRIGHTEST math students he had ever had.