Voicemails Forever makes editing a voicemail easy and quick. Each edit will become its own mp3 file for sharing or download. This tutorial will guide you through the process.
There are two tiers of paid accounts, giving you ad-free access, the ability to “Slydial” multiple people simultaneously, and other premium features. For most people, the free version is perfectly adequate.

If you never recorded one and want to record or change a voicemail greeting, you've come to the right place. The process is very simple. You'll just have to click the green phone icon, the same place you make calls, and navigate to the voicemail screen. On the voicemail screen, you'll see a greetings option on the top left.
Recording Phone Calls on an iPhone Without Using Apps This method can be considered as the easiest, fastest, and perhaps “dirtiest” way of recording a phone call from an iPhone. All you basically need to make this work is another device that has a microphone that can record (like a computer, iPad, or a portable recording device).