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Hosted PBX Market 2018-2025 [telecom]

Hosted PBX Market 2018-2025 Key Players (AT&T, BT Group, Cisco Systems, 8x8, Avaya, Megapath, Centurylink, Polycom, Mitel Networks, etc.) Growth Margin and Global Forecast Report

Hosted PBX Market Research Report 2018 offers detailed analysis of market size, share, growth, trends, key player's analysis, product scope, types, application and 2025 insight. The report also provide information about production cost, chain structure, statistical data, challenges, global demand, applications, competitive landscape, investment plans and development status analysis with expert's opinions.

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Reply to
Bill Horne
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Historical background:

1) This article from Bell Labs Record describes the Pentagon's then new PBX, serving up 15,000 lines. Note the then new fluorescent light fixtures:

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2) This article from Bell Labs Record describes cordless (console) based PBX's. Many of the principles and practices developed in those years are carried through to today.

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3) After WW II, the 555 was a popular single position manual PBX, serving up to 13 trunks and 120 stations. Two could be placed side-by-side to double capacity. A marketing brochure is shown here:

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The Bell Labs Record article describing the 555 may be found here:

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Reply to
HAncock4

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