Visual voicemail

In 2009, YouMail was the first to then extend this to also provide this functionality with an app for the BlackBerry, iPhone, and Android platforms, and an API that allowed others to build clients for Windows Phone 7 and WebOS.

The document is intended to ensure that standard functionality of voicemail servers may be accessed through a range of VVM clients via the defined interface.

In 2015, Google brought a native implementation of visual voicemail into Android via the Marshmallow update, by integrating it into the dialer user interface, thereby allowing compatible carrier VVM services to hook into it with minimal configuration.

[5] From 2005 to 2012, Klausner Technologies Inc, whose CEO is Judah Klausner, one of the inventors listed on the '576 patent, brought dozens of lawsuits against Apple, Callware, Google, Microsoft, Oracle, MetroPCS, Digium, Schmooze Com Inc and others for patent infringement.

[7] In August 2011, a patent was granted to Apple for "Voicemail manager for portable multifunction device".