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National Taiwan University of Science and Technology, Taiwan, Province of China

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Institute of Medical Technology and Equipment, Poland

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Ton Duc Thang University, Vietnam

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VSB - Technical University of Ostrava, Czech Republic

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Ton Duc Thang University, Vietnam

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Wroclaw University of Science and Technology, Poland

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Technical University of Cluj Napoca, Romania

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Posts and Telecommunications Institute of Technology, Ho Chi Minh City, Vietnam

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Ton Duc Thang University, Vietnam

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Delhi Technological University, India

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Ho Chi Minh City University of Technology and Education, Vietnam

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DIMES Department of University of Calabria, Italy

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Henan Polytechnic University, China

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Ho Chi Minh City University of Transport, Vietnam

Anh-Tu Le
Ho Chi Minh City University of Transport, Vietnam

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Ton Duc Thang University, Vietnam


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IP Telephony Based Danger Alert Communication System and Its Implementation

Filip Rezac, Filip Kolenovsky, Martin Mikulec, Miroslav Voznak, Jan Rozhon, Jiri Vychodil, Karel Tomala, Jakub Safarik

DOI: 10.15598/aeee.v10i4.711


Abstract

The paper deals with development of a web application allowing to deliver pre-recorded voice messages by using SIP generator. The developed application is a part of complex system, which has been evolved in Dpt. of Telecommunications, Technical University of Ostrava for last three years. Our intent is focused on disaster management, the message, which should be delivered within specified time span, is typed in the application and text-to-speech module ensures its transormation to a speech format, after that a particular scenario or warned area is selected and a target group is automatically unloaded. For this purpose, we have defined XML format for delivery of phone numbers which are located in the target area and these numbers are obtained from mobile BTS's (Base transmission stations). The advantage of this aproach lies in controlled delivery and finally the list of unanswered calls is exported and these users are informed via SMS. In the paper, the core of the danger alert system is described including algorithms of the voice message delivery.

Keywords


Asterisk; Danger Alert System; PHP; SIP; Sipp; VoIP.

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