Roaming is the ability for a cellular customer to automatically make & receive voice calls, send & receive data, or access other services when traveling outside the geographical coverage area of the home network, by means of using a visited network. The charges for this facility is Roaming charges
Radio frequencies (RF)
Right of Way
The Radio Telephony Restricted (Aeronautical) license – permits Air Crew and Engineers to use the necessary wireless equipment in order to communicate with Air Traffic Control (ATC) or ground stations. Wireless Planning & Coordination (WPC) Wing issue this license.