Voice Over IP (VoIP) services are not expressly regulated, but may need a concession or a registry depending on the type of service provided. Carrier interconnection is mandatory and interconnection fees are regulated. The Peruvian government maintains a Telecommunications Investment Fund (FITEL) to promote universal service within the country's most isolated regions, including rural areas and areas of social interest.[1] Following the successful implementation of mobile number portability, the government requires fixed number portability be launched by July 2014.[2]