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Now showing items 81-90 of 193
Telemedicine using VoIP combined with a store and forward approach
(Telkom, 2004)
Rural areas in South Africa have unique conditions such as remoteness and scarcity of reliable public facilities. Information and Communication Technologies (ICTs) introduced into these areas must be suitable for these ...
Telgo323: an H.323 Bridge for deaf telephony
(Telkom, 2002)
We have developed a prototype bridge that relays text and speech between Teldem, a text telephone for the Deaf, and a standard telephone or H.323 endpoint. Telgo323 uses modified H.323 media gateways and open source Text ...
An interoperable signaling solution between SIP and H.323
(Telkom, 2001)
The Session Initiation Protocol and H.323 dominate the Voice over IP world. These signaling protocols are responsible for call setup and call tear down by IP telephony solutions. This project analyses and discusses the ...
A framework and toolkit for the collection and analysis of QoS statistics for voice traffic in Next Generation Networks
(Telkom, 2000)
The multi-service, multi-architecture nature of NGNs is so complex that the management of services, in addition to networks, emerges as a research challenge. Despite QoS limitations, VoIP (as opposed to VoATM), dominates ...
Web-based telephony bridges for the deaf
(Telkom, 2001)
A Teldem provides text-based telephony services to the deaf. Despite an array of text-based communications mechanisms on the web, the Teldem is the only means of synchronous telecommunication available to a deaf person. ...
Is your garden green? How to be kind to your garden
(Botanical Society of South Africa, 2008)
Years ago, there was plenty of open, natural veld surrounding our towns and it was rich in wildlife. As towns expanded the natural veld and wildlife shrank into patches between towns, factories and farm land. With this ...
Of sea lettuces and green sea intestines: common intertidal green seaweeds of the Cape Peninsula
(Botanical Society of South Africa, 2000)
Most of us know seaweed as that slippery stuff growing on the rocks or lying strewn along the beach at low tide making the beach smell. But do we really know much about them? Although not entirely true, seaweeds (or marine ...
Abalone farming in South Africa: an overview with perspectives on kelp resources, abalone feed, potential for on-farm seaweed production and socio-economic importance
(Elsevier, 2006)
The South African abalone cultivation industry has developed rapidly and is now the largest producer outside Asia. With a rapid decline in wild abalone fisheries, farming now dominates the abalone export market in South ...
16 S rDNA primers and the unbiased assessment of thermophile diversity
(Portland Press, 2004)
Our understanding of thermophile diversity is based predominantly on PCR studies of community DNA.
‘Universal’ and domain-specific rRNA gene PCR primers have historically been used for the assessment
of microbial diversity ...
Metagenomics, gene discovery and the ideal biocatalyst
(Portland Press, 2004)
With the rapid development of powerful protein evolution and enzyme-screening technologies, there is
a growing belief that optimum conditions for biotransformation processes can be established without
the constraints of ...