The network designer’s role in voice solutions is very important because, regardless of the infrastructure vendor, voice transport scenarios often suffer from poor planning and implementation. Most large organizations choose their voice architecture, including Public Switched Telephone Networks (PSTN) and Private Branch Exchange (PBX) solutions, based on the financial stability of the manufacturer, the support level they offer, and the competitive pricing of the hardware, software, and maintenance components. Cisco is one of the main providers of emerging integrated voice and video solutions.
Analog versus Digital Signaling
When human voice is transported digitally over a network infrastructure, a . . .
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