While Gudbjorgsrud Stein, Director of Regulatory Affaris AeroMobile, like that was launched from this, said that the mobile phone could be used during the aircraft already in the height above 5,000 metre, or kru the aircraft has given the sign. Stein added, if the phone was used under the height 5,000 metre, then the signal from BTS (Base Transceiver Station) phone can still disrupt the aircraft, afterwards carried out the intervention in navigation of the aircraft.

Stein explained, that when was under this height, the phone could be still looking for the signal, whether for voice or SMS, or GPRS, because of this service used the satellite service that was used the phone. While in the aircraft was gotten equipment that afterwards forced the cellular phone with power that was lower, so that does not disrupt aircraft navigation. For that, CAA gave the rule that aircraft passengers were not allowed to send the SMS or telephoned when the aircraft cabin has been closed, except for having the other rule from kru the aircraft.