||Cell Broadcasting has been an existing feature of GSM, UMTS, CDMA and PDC for many years, which however is rarely used. It has three attributes that make it very good for Government to Citizen mass communications in emergencies. 1) It uses reserved capacity for this feature; traffic does not take its bandwidth. Therefore it works even if the cellular system is in full overload, as it always is during disasters. 2) It can place millions of text messages on mobile phone within seconds, and is scalable to any size of broadcast including international scale without any additional time penalty. Most mobile phones have the capability now, so there is no need to build more infrastructures or replace phones. 3) By selecting the individual cells to be used, specific areas can be targeted with different messages, so that people in one area can be asked to evacuate, while in another they can be advised to stay. The government of Holland is the first in the world to adopt the technology, which will be operational by May 2005.