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The Queen makes First Trunk Call 50 Years Ago
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deanOffline
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Joined: Dec 13, 2003
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Posted: Dec 08, 2008 - 06:25 PM Reply with quote Back to top
I have to admit when I first watched this video and Her Maj started dialling I was expecting to hear DTMF tones Wink

http://news.bbc.co.uk/1/hi/uk/7766631.stm
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maziloOffline
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Joined: Feb 09, 2005
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Posted: Dec 14, 2008 - 03:04 PM Reply with quote Back to top
Fifty years ago, I believe engineers were trying to implement a TC/PIP as a way to communicate on phone; however, due to lack of resources, they ended up with a pulse dialing method until someone came up with a DTMF tone dialing method. Wink
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