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Potential Security Problem looms for users of PCbased VoIP products

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Dedicated VoIP hardware used exclusively with no need of a PC. This would be the safest. Users keep it secure the same way they ...

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Potential Security Problem looms for users of PCbased VoIP productsPage 1IEEE Canadian Review Winter / Hiver 200519W1.0 Introductionith the growing use of Voice over Internet Protocol (VoIP)even nondialup users may soon find themselves with hugelong distance bills for calls they did not make.Modem hijacking victimizes users of regular dialupmodems by enticing them to install a piece of software that promises toenable them to view play or have access to games videos music psychics or adult sites. If the user agrees with the installation withoutbothering to understand the fine print then the modem dialer softwaregets installed and executed 12]. Without any additional permissionfrom the user the PC is then used to dial to a long distance internet provider number a 1900 number or FTP site to accrue peruse chargeswhich the user will then be responsible for 3]. The user wont be awarethat his existing internet connection is dropped and that another connection has been redialed because the software will shut off the modemsspeaker 2] or it would wait until the user has moved away from the PCby detecting idle time.Faced with the charges the victimized users either pay up or lose theirphone service. In the US people have filed complaints with the FCCand FTC and in Canada with the CRTC. Generally though the phonecompanies treat these on a case by case basis 5].2.0 Why Voice Over IP?VoIP allows you to make telephone calls using a computer networkover a data network like the Internet. VoIP converts the voice signalfrom your telephone into a digital signal that travels over the internetthen converts it back at the other end so you can speak to anyone with aregular phone number. When placing a VoIP call using a phone with anadapter youll hear a dial tone and dial just as you always have. VoIPmay also allow you to make a call directly from a computer using a conventional telephone or a microphone 6]. An AT&T paper declares that since voice is now being ...

Source: ieee.ca

 

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