After creating, the Voicemail Greeting, you can test it by calling to your number from another phone, and see if it is playing correctly or not. Open the Phone App. On the lower screen, tap on the Voicemail option. Select Custom, with this option, you can record the personal voicemail greeting on the iPhone. Tap Record, to start recording the voicemail greeting message on the iPhone. Greeting samples are given in this article below, Once you are done with recording, tap Play to listen. Lastly, if everything is alright, and custom voicemail recording is perfect, then tap Save.
There are several free third-party apps on the market that efficiently translate voicemail messages you receive into text, but most phones on the market also have their own built-in visual

Sprint: Sprint has its own basic voicemail for you to set up. In order to get there, you’ll need to press and hold the 1 button and create a four-to-ten digit passcode to access your voicemail. You’ll then need to follow the voice prompts to set it up.
Ooma voicemail app is among best voicemail app android providing high degree of flexibility. The app offers its users with high-quality voicemail and all-around phone services from anywhere. You can manage your voicemails efficiently and effectively with this app. Ooma allows you to delete, compile, and listen to all voicemails easily.