Mobile users can now take part in videoconferencing thanks to extensions to the H.324 standard for videoconferencing over ordinary phone lines.The International Telecommunications Union said it approved extensions to the standard at its most recent meeting in September. The changes mean that users with mobile equipment working in the field can take part in multimedia conferences as if they were back in their offices, so increasing the flexibility of videoconferencing. At present modest data and video image transfer is possible depending on bandwidth, but not general conferencing, said Frederico Tosco, who heads up one of the working parties at the ITU. In addition, the ITU has approved extensions to the H.323 standard for videoconferencing over computer networks.
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