Some Internet applications can be disturbed by the ICN feature because of the audible signaling ("beep") of the incoming call, and also through interruption of the Internet session for a certain length of time. Such interruptions can disrupt data transfer and may can cause time-outs for some applications; e.g., file transfers. To avoid this, refrain from picking up incoming calls while running sensitive applications. Additionally, you may want to deactivate Call Waiting if you are running critical applications.