All providers of interconnected fixed or non-nomadic Voice over Internet Protocol (VoIP) services as of December 1, 2010 will be required to register with the Illinois Commerce Commission (ICC) by January 1, 2011, in accordance with 220 ILCS 5/13-401.1. Thereafter, new providers will be required to register with the ICC at least 30 days prior to their provision of service within Illinois. The ICC has posted a copy of the registration form here.