On an Android phone, a voicemail icon will appear at the top left of your screen in the Status area if you have an unread voicemail. Swipe your finger down from the top of the screen to view your notifications and then press New Voicemail. Your phone will dial the voice mailbox.
Forget about messing around with apps. There’s a powerful voicemail handling system built into nearly every big carrier today — and that system almost always includes a system for recording a voice message and sending it directly without ringing the target phone. I will walk you through the process of doing this on Straight Talk (since that happens to be my carrier) but most carriers will have similar systems.

You can also set your Galaxy A series smartphone to record all the calls (or selectively record calls to and from select numbers) automatically without the need to hit the record button. If you frequently record calls, this feature is quite useful, and here’s how you can do it:
To get started, go to the Phone app on your iPhone 12. Tap the Voicemail icon. This looks like two circles, connected by a straight line at the bottom. If it's the first time you're accessing voicemail, you'll see an option to set up your voicemail. Tap Set Up Now to begin the set up process.