The MDU said that some of these complaints could have arisen because of breakdowns in communication and could be avoided with the establishment of good communication links between GPs and out of hours providers.

BBC: NEWS | Health | GP out-of-hours complaints soar

"London is doing well as a city and I think if you are going to compete with the leading cities and leading financial centres of the world you need good communication links, " he said.

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Satellite-based data links will improve communication between pilots and ground controllers, cutting out about 40% of voice communication over the radio.

ECONOMIST: Clearing the skies | The

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In the more distant future, it may allow communication at higher data rates than present radio links can provide.

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When email was invented, it was used as a communication tool between scientists that were sharing mainly text messages over unreliable links.

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