The Cabinet Office has invited mobile operators to offer their solutions, that would enable the police to push emergency messages to members of the public.
A key fact within the proposal is the ability to restrict transmission to a fixed geographic area, the scope of which will be determined by the police.
According to the Cabinet Office the new system will allow emergency situations to be handled more efficiently, reducing panic. In it's criteria the government says the system "is intended that citizens receiving the message will act in the way to reduce overall harm and improve the efficiency and effectiveness of the response to the incident. We are conscious that the message will be potentiality received on all customer phones".
The Cabinet Office experts say there will be two stages. "Stage 1: Insights gained from the existing experience within the selected supplier. A face to face presentation of the initial insights with help whether to proceed with Stage 2: engagement as appropriate, with four mobile networks and other appropriate suppliers of network services. Source of article.