jetkins writes "Just days after the FCC announced that the use of cellular phones would be officially banned onboard aircraft in the USA, ZDNet reports that Australian airline Qantas is to undertake a three-month trail of a new in-flight cellular service. Initially installed on a single aircraft, the system utilizes technology from British company Aeromobile, providing a miniature GSM 'tower' within the aircraft cabin. Since GSM phones dynamically adjust their transmit power, being in such close proximity to the tower means that phones will emit only minimal RF. The system operates as a separate 'country', meaning phones must be enabled for international roaming and calls are charged at international roaming rates. During the trial at least, only SMS, MMS, and GPRS (data) traffic will be allowed; voice calls will be blocked."