In early fall C4i was called upon to assist a high altitude search and rescue training facility located in the mountains of eastern California. The base dispatch center was having difficulty communicating across a high peak to personnel on the other side, as well as with aircraft. The field team operated in a very rugged, remote area and needed a way to communicate with members who worked at the main buildings, however the groups were separated by a mountain range 3 miles (5 km) away.