D. Butcher

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—Voice over Internet Protocol (VoIP) has become a popular alternative to traditional public-switched telephone network (PSTN) networks that provides advantages of low cost and flexible advanced " digital " features. The flexibility of the VoIP system and the convergence of voice and data networks brings with it additional security risks. These are in(More)
Session Initiation Protocol (SIP) is an open standard protocol and constitutes the provisioning of services like Internet Telephony and Instant Messaging. Vulnerabilities in SIP have made it possible to exploit it and launch many of the known internet attacks and also few specific attacks, thus affecting the services deploying SIP for session management. To(More)
This paper presents the Theory of Retailer Price Promotions (TRPP) for Consumer Packaged Goods (CPGs). The theory states that under several conditions that completely apply to CPGs, incremental retail sales generated by promotional price discounts are entirely incremental to the promoting manufacturer, the promoting retailer and the category, overall. In(More)
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