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17 juill. 1997 - The first hosted PBX launched. Which stands for Private Branch Exchange, it is a private telephone network used within a company or organization.
Ajouté au bande de temps:
The Evolution of Phones
By
Jasmine
13 nov. 2018
0
0
694
Date:
17 juill. 1997
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~ Il y a 27 ans
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