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Call Set - up Audio Transmission Call Termination Hang Up Tone Hang Up Signal Off - Hook Trunk Line Hang Up Control Off - Hook
An Internet Telephony Gateway Server is a server that integrates the Internet into the Public Service Telephone Network (PSTN). It makes use of the Internet as a new form of media to transmit speech audio between two conventional telephones. This paper examines the software design of the server and identifies the necessary Application Programming Interfaces (APIs) for the server software. Two m...
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Anycast-based services today are widely used commercially, with several major providers serving thousands of important websites. However, to our knowledge, there has been only limited study of how often anycast fails because routing changes interrupt connections between users and their current anycast site. While the commercial success of anycast CDNs means anycast usually work well, do some us...
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This paper discusses the effectiveness of different media from a social psychology perspective, and the implications on interactions in social groups and in organizations. In particular, we are interested in the social richness of the media—how effectively they convey the personalities and intentions of their users. We studied CMC (email and chat) and voice telephony, and compared them with fac...
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Canada's provincial and territorial governments have expressed an interest in bulk purchasing prescription drugs for many years. We propose they start by purchasing selected generic drugs for the entire population and provide them for little or no cost to patients. This politically popular strategy would significantly reduce drug expenditures and improve population health.
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ژورنال
عنوان ژورنال: The Iowa Review
سال: 1970
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.1052