Alarm arrangement at a mobile communication system
First Claim
1. An arrangement in a mobile communication system for transmitting an information signal from a mobile telephone or other unit having similar capabilities, to an optional communication system such as an Internet system and in that case to a predetermined information unit, characterized in that one or more of the mobile telephones continuously emits a signal such as a USSD signal that is characteristic for each mobile telephone, in that a transmitting device is applied between the central unit of the mobile system and the Internet system, and in that the information unit triggers an indication in the absence of information signal.
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Abstract
Mobile telephones are often used during transport involving risk, and in that case to call for help. However, the mobile telephone may be blocked by the perpetrator of a crime. The present invention solves this problem since, whether it is in use or not, a mobile telephone continuously emits a signal. An alarm will be triggered in the absence of a signal at a receiving unit, which receiving unit may be an alarm centre or an Internet
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4 Claims
- 1. An arrangement in a mobile communication system for transmitting an information signal from a mobile telephone or other unit having similar capabilities, to an optional communication system such as an Internet system and in that case to a predetermined information unit, characterized in that one or more of the mobile telephones continuously emits a signal such as a USSD signal that is characteristic for each mobile telephone, in that a transmitting device is applied between the central unit of the mobile system and the Internet system, and in that the information unit triggers an indication in the absence of information signal.
Specification