Step 3) Input the number of seconds that the iPhone should ring. Now type *11* and then enter the number of seconds that you want your device to ring before the call is sent to voicemail. If you want it to be 10 seconds, then you should now have the following on your phone app. *61*+123456789*11*10. Now you can place the call.
Rev, our top-rated transcription service, offers an app to facilitate recording incoming and outgoing calls by merging in a Rev recording number on a 3-way call. You access the recordings in the Conversations area of the app.

If your carrier supports the iPhone voicemail feature, you can retrieve and listen to your voicemail right from within the “Phone” app and call your contacts back by simply tapping their messages. That type of functionality is pretty neat and useful, because it saves you actual time. If not supported by your carrier, you will not be able to see the visual overview of your voicemail inbox and use any of the related features. Tapping the “Voicemail” tab in your “Phone” app will simply call the number associated with your voicemail box. So let’s get going with creating our custom voicemail greeting on iPhone! How to record your own Voicemail on iPhone Phone → Voicemail → Greeting → Custom → Record → Save
Apple was one of the first companies to include Visual Voicemail on its phones, starting way back in 2007. Rather than having to dial into your normal voicemail system and listening to recorded messages in a fixed sequence, Visual Voicemail shows you a list of your voicemail calls on your screen and lets you listen to them in any order simply by tapping the call in the list.