But what’s really great about Samsung’s way of dealing with voicemails is the new and improved Visual Voicemail service. This lets you view voice mail messages and listen to them in any order you want. Instead of listening to all of them in order, you can pick the ones you’re interested in. Even more, you can decide to erase or archive them, all from your device screen. Visual Voicemail also includes button shortcuts to call back or text a person that left you a voicemail.
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.

Alright let me try to clear this problem as much as I can. From the parent carrier, we have a limitation or you can say a requirement that all numbers should have the Voicemail set up. So what we do for those customers who don’t want it, we disable it from our side but again the numbers keep syncing from the parent carrier’s network from time to time (roughly once a quarter). When the numbers get synced, voicemail automatically gets enabled. To some people, this is alright but sometimes it becomes inconvenience for the customers to call us again to disable it.
Before you push record, be sure to tell the person on the other end of the line you're recording; depending on your location, you may be breaking a law if you don't. Some US states—like New York and even the feds—only require one-party consent, which means you can record without telling the other person or persons. In California, all parties must know they're being recorded—even if the recorder is out of state. Under federal law, one-party consent is okay, but only if you're part of the conversation; otherwise that's considered eavesdropping.