Switchboard operators, who initially routed telephone calls manually, replace automatic switchboards towards the end of the 1800s with the development of technology. Over the years, technology has progressed as follows; Strowger Switch and Crossbar Switch which use electromagnetic energy to open and close switches, single processor SPCs (Stored Program Control) to manage 10-100 calls per[…]
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Class 5 Softswitch
What is Softswitch and How Does it Work?
By sigmatelecom Business, VoIP Mar 31, 2021
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