Flight attendants usually check passengers’ mobile phones and other electronic equipment is turned off. This is to 
consider the mobile phone’s wireless signal frequency and the plane wireless communications, navigation equipment band consistent, wireless signals between mutual interference, extreme cases, may let the plane of the electronic equipment failure, endanger flight safety.
Although the “if the cell phone really can cause plane crash” have been debating for years now, there is no verdict, but for aviation companies, ensure the life safety of the passengers is the most important responsibility, therefore, the FCC simply dictate on the plane passengers must be closed cell phone.
Recent British virgin airlines announced that they can secure the passengers on the plane, text messaging, call send MMS, voicemail messages, and so on. In short, in the virgin airlines plane passengers can use the telephone to normal foreign trade relations. This is the company behind new partners AeroMobile provide a perfect technical support.
According to Wired reported, AeroMobile in the upper part of the the cabin, also is the top of the head of the passengers, deployed a “tiny village (picocell)”. The working principle of the village slightly is like a GPRS wireless signal towers, it can receive from mobile phones and other electronic equipment passengers of wireless signals. Then, through the wireless signal towers, AeroMobile will be sent to the satellite data, then by the satellite data is sent back to the surface, so complete a data transmission process. Similarly, when users mobile phone when receiving data, it is the ground will be sent to the satellite signal sent to the signal of the plane again towers, and transmission on hand. Due to the “tiny village” and the passengers between mobile phone signals use separate frequency band, then it won’t be on the plane of electronic equipment form electronic signal disturbance, this ensures the safety.