In published in October 2010, Microsoft Windows Phone fans expected all the same that was already in the iOS and Android, because Microsoft was where to take an example. However, the Redmond company has decided to make a key feature of the system design, to put all the power is in it, and to introduce the features and functions over time , gradually adding with the latest updates . However, this process takes too long , and some of the key features required (eg , separate volume control ) , will be introduced only in Windows Phone 8.1.