You can tap on Record to start recording a new iPhone voicemail greeting and then Stop when you are done. Tap on Play to listen to it so you don’t have an embarrassing mistake or noise in it. When you are satisfied with the message, tap Save in the upper right.
The importance of voicemail in the customer care sector has not diminished despite the arrival of newer web technologies. VoIP applications let the businesses use voicemail service with flexibility, as it is. The users need not rely on extension terminals when they use VoIP services. A strong internet connection is a prerequisite and the pre-configured phones can be used – both for calling /receiving calls and for automated custom greetings. IVR feature redirect callers to the right virtual extension where their needs can be addressed. This can be done anywhere through a web portal access and an internet connection.

A word of warning: These greetings will not do you any favors if you're in the midst of a job hunt or work in a conservative industry. Always remember your target personas. If there's a chance they won't appreciate your sense of humor, opt for a straightforward greeting instead.
For personal users, a funny iPhone voicemail message may be just what you want. It’s still a good idea to keep it short, but you can have some fun by using your iPhone to record a funny voicemail message played over a speaker on your computer or another device.