claims, Vonage calls were being connected over the Clearwire network. In September 2010, Clearwire introduced a dynamic network management system, which, for users who consume "disproportionate" amounts of wireless data, limited the user to about 256 kbit/s of network throughput. Certain users claimed their terms of service were modified retroactively to reflect the new policy, and Clearwire itself has unofficially acknowledged this claim. In the middle of 2012, Clearwire reached a settlement to provide partial refunds of termination fees and service credits for individuals who experienced throttling as part of their dynamic network management policy. The settlement allows Clearwire to continue throttling connections under certain circumstances as long as their advertising reflects this. In September 2013, Clearwire in Spain, operating under the brand Instanet, cut off all of its services, web and phone lines without prior notice. It was reported at the time that Spanish consumer associations were gathering evidence of possible overcharging. On April 15, 2015 (over a period of a few days), Clearwire cut off its clearwire.net email services in the United States. On April 17, 2015, Clearwire announced Sprint would cease operations of the CLEAR 4G (WiMAX) Network and Clearwire Expedience Network on November 6, 2015. See also Sprint Corporation Google Virgin Mobile USA Mobile broadband Wireless broadband Wireless internet service provider References External links CLEAR U.S. products and services homepage Clearwire Belgium homepage Clearwire Spain homepage Companies formerly listed on the Nasdaq VoIP companies of the United States Defunct telecommunications companies of the United States Internet service providers of the United States Internet service providers of Belgium Internet in Spain Companies based in Bellevue, Washington Defunct companies based in Washington (state) 1998 establishments in Texas 2015 disestablishments in Washington (state) Broadband Sprint Corporation Telecommunications companies established in 1998 Technology companies disestablished in 2015 2013 mergers and acquisitions 2007 initial public offerings