To use a different greeting you already recorded or switch back to the default greeting: On your Android device, open the Voice app . At the top left, tap Menu Settings. In the Voicemail section, tap Voicemail greeting. Next to the greeting you want to use, tap More Set as active.
When you reset network settings, all of your iPhone’s Wi-Fi and cellular network settings will be erased. This includes your Virtual Private Network (VPN) settings, your Bluetooth devices, and your Wi-Fi networks — so make sure you write down your passwords first! We do this step because it can be very difficult to track down the exact source of a software problem, so we reset all network settings.

Now, click on the “Settings” or “More Settings” option. Remember that if you don’t have this option, then this method will not work for disabling Voicemail.Scroll and check for the “Call-forwarding” and tap on it.You may be asked to choose from “Voice Call” and “Video Call” forwarding settings. Choose the Voice Call option.Disable call-forwarding and save the settings if your device asks. You have disabled Voicemail now.
How do you check your VoiceMail? To check your voicemail messages from another phone: Call your 10-digit wireless number. When you hear your voicemail greeting, press the * key to interrupt it. If you reach the main voicemail system greeting, enter your 10-digit wireless phone number, then interrupt your greeting by pressing the * key.