Most of the time this error is caused by the connectivity of your phone to a cellular network or WiFi connection. The easiest way for solving this issue is by turning the Airplane Mode ON. On your main screen of the phone, you can swap down the notification bar and tap on the Airplane Mode option. Once it is ON all the connectivity to your phone will be turned off. You can wait for 30 seconds and then turn it back OFF by using the same method. This option can vary depending on the device you are using. For some devices, you need to go to settings or use the power button on the phone to get to Airplane Mode. After applying this method, you can now try updating or setting up the voicemail greeting on your phone.
To save voicemails on most Android phones: Open your Voicemail app. Tap, or tap and hold the message you want to save. In the menu that appears, tap the one that says “save”, “export” or “archive.”

You can delete individual voicemails as you listen to them, and most networks will automatically delete old voicemails after 30 days. However, few networks offer a simple way of deleting multiple voicemail messages when your mailbox is full – unless you can use an option such as Visual Voicemail, which lets you delete messages with a quick tap of your finger.
Recent trends in voicemail have leaned towards the desire for many individuals to relate on other forms of digital message than traditional voice mails. More individuals have not set up their voice message nor return calls in a decent amount of time. However, some voice messages even steer individuals to contact by email for a quicker response. If you still enjoy the concept and position that a voicemail box serves, you may feel compelled to add a witty voicemail greeting to your caller. The following selection has been shared by others around the global and intended to inspire you to create your own unique humorous voicemail.