Circuit-Switched Infrastructure & Packet-Switched Infrastructure
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1. Why is it technically easier to provide voice telephone service over a circuit-switched infrastructure than over a packet-switched infrastructure?
2. Despite the fact that it is technically difficult, why is there great interest in providing voice telephone service over a packet-switched infrastructure?
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Solution Summary
Provides a discussion comparing circuit-switched infrastructure and packet-switched infrastructure.
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1. Traditional telephone service has been over circuit-switched infrastructure, where the phone line from one endpoint to the other endpoint was reserved by the network devices in between during call setup. This process provides a dedicated end-to-end line that is used by this one call; the line is guaranteed to be available for as long as the call is in progress. If an intermediary device ...
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