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Fixed and mobile telephony with other telecommunication services are moving to a fundamentally different infrastructure as the transition proceeds from the public telephone network to the Internet. There are many opportunities to make significant progress on major developments such as separation of operator independent functions, modular design, and the integration of other desirable features of sustainable...
The interfaces for human-machine interaction on a public telephone in Malaysian are symbolised by pictograms and icons. This paper attempts to illustrate the effectiveness of the “Phone Card Insert-Eject” pictogram in representing its intended function as an example to the overall study. Subsequently, a new set of pictograms were proposed and evaluated for its comprehension and...
Public telephony - the preferred choice for two-way voice communication over a long time - has enjoyed remarkable popularity for providing acceptable voice quality with negligible connection delays, perhaps due to its circuit-switched heritage. Recently, IP telephony, a packet-based telephone service that runs as an application over the IP protocol, has been gaining popularity. To provide seamless...
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