Many people complain that they sometimes miss calls on their iPhone because it only rings three times before diverting the call to your voicemail system. The length of time that your iPhone will ring before activating voicemail is actually controlled by your mobile network.
Voicemails are recorded on your network as audio files and are downloaded to your phone. They are then played back in the usual way, just through the phone app rather than through the music app. Any voicemails you have are visible in the Voicemail app and should be able to be played back by pressing the play icon. This doesn’t always work, though. Here are some fixes you might try.

With Visual Voicemail, you can see a list of your messages and choose which ones to listen to or delete. Learn how to set up and transfer your existing voicemail. Create a voicemail password, then tap Done. Enter your password again to confirm it, then tap Done. Select Custom or Default. If you choose Custom, you can record a new greeting. Go to the Phone app, then tap the Voicemail tab. Tap Set Up Now. Enter your password,* then tap done. Record a custom greeting or use the default greeting, then tap Save.
Here is the way for, how to set up Voicemail on iPhone. Voicemail, Voice message, and voicebank all is the same thing. Using Apple iPhone, you can record your audio speech (message) and then send it to the recipient. Voicemail is depended on your country-wise carries such as in USA carrier – Verizon, at&t, sprint, and more. In this era, almost folks shout that without voicemail has felt like irksome. Since, here I publish my solved tip, for those users, who have Voicemail setup/ activate issue on his or her iPhone. This is the quick easy tip to Set up Voicemail on iPhone Verizon.