The speaker icon is greyed out and to make it work, we need to play the voicemail first and start to play it again from the beginning which is not the same way it worked before, where the sound is loud and there's a little 3 icon in the speaker that is not showing anymore. Already called Samsung technical support, and remotely accessed the phone. Performed troubleshooting like clearing cache and data, uninstalling voicemail and reinstalling voicemail, and setting the voicemail again none of which worked. The speaker icon for voicemail has to be turned on manually every time a voicemail is played.
