If you want to leave a voicemail without calling, there are a few different ways to go about it. The first way is to use the voicemail app on your iPhone. To do this, open the app and select the voicemail you want to leave a message on. Tap the “Record” button and start speaking. The second way is to use the phone’s voice recorder. To do this, press and hold down the “Home” button until you see the “Voice Recorder” icon appear. Then, release the button and start speaking. The third way is to use Siri. To do this, say “Hey Siri” followed by your message. ..