In the case of iPhone, the voicemail notification balloon is activated and is always marked with red color that you must access the voicemail, regardless of whether you have deactivated or listened to all messages. The trap is with the companies, since accessing the voicemail is an unnecessary expense, therefore, you will always have alerts that you have to enter the voicemail, thanks to the notification as a red balloon.
Apple by default, configures in all its iOS versions for iphone, iPad and iPod the famous red notification balloons. For many users this is annoying because it warns the user that something has not been reviewed even though it has done so successfully.
With the following procedure, you will learn how to turn off the voicemail notification balloon on your iPhone, so that it will no longer appear and your life will be simpler when interacting with your smartphone:
Open Settings on iPhone.
Open Notification Centers and slide the menu to the Include option.
Several native iPhone applications will be deployed and you will choose Phone.
Scroll the submenu until you reach Balloons in the Icons and you will deactivate this option.
It returns everything until the Start of Settings and closes the application.
When you disable the red balloon notification on the iPhone, it does not mean that you will no longer receive calls or that you will not be able to leave a message in the mailbox, everything is still normal, except that you will no longer have the message on the screen, To Telephone. If you want to re-activate the red notification balloon for voicemail or missed calls, repeat the same procedure, but at point 4 do the opposite.