In their response to the FCC, Google stated that the Google Voice application uses the carrier's voice network to place phone calls, dispelling misconceptions that it is a Voice over Internet Protocol application. AT&T stated that they had no role in approval or rejection of the Google Voice application. Apple stated that they had not rejected the application but were continuing to examine it. One argument against allowing the Google Voice app on the iPhone is that they are concerned that it replaces the iPhone user interface with its own; however many dialers and messaging apps are available from the app store.