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17 Jul 1997 Jahr - The first hosted PBX launched. Which stands for Private Branch Exchange, it is a private telephone network used within a company or organization.
Zugefügt zum Band der Zeit:
The Evolution of Phones
By
Jasmine
13 Nov 2018
0
0
693
Datum:
17 Jul 1997 Jahr
Jetzt
~ 27 years ago
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