Grant funds awarded under this part may be used only for:

(a) The implementation and operation of 911 services, E-911 services, migration to an IP-enabled emergency network, and adoption and operation of Next Generation 911 services and applications;

(b) The implementation of IP-enabled emergency services and applications enabled by Next Generation 911 services, including the establishment of IP backbone networks and the application layer software infrastructure needed to interconnect the multitude of emergency response organizations; and

(c) 911-related training of public safety personnel, including call-takers, first responders, and other individuals and organizations who are part of the emergency response chain in 911 services.