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- reference: wikipedia on VOIP:
-
- "Communication on the IP network is
- perceived as less reliable in contrast to the circuit-switched public
- telephone network because it does not provide a network-based mechanism
- to ensure that data packets are not lost, and are delivered in
- sequential order. It is a best-effort network without fundamental
- Quality of Service (QoS) guarantees. Voice, and all other data, travels
- in packets over IP networks with fixed maximum capacity. This system may
- be more prone to data loss in the presence of congestion[a] than
- traditional circuit switched systems; a circuit switched system of
- insufficient capacity will refuse new connections while carrying the
- remainder without impairment, while the quality of real-time data such
- as telephone conversations on packet-switched networks degrades
- dramatically.[16] Therefore, VoIP implementations may face problems with
- latency, packet loss, and jitter.[16][17]"
-
-
- Based on my own experience
-
- I've seen VOIP have occasional dropouts.
- I've seen copper be bombproof.
-
- When copper was laid, it was done with care,
- and it was built to last. VOIP is tacked onto internet connections as an
- afterthought. It can work, but it can certainly not work. Where
- on the other hand, copper will always work. Even if the power or internet
- goes down.
-
- Verdict: VOIP or Copper is ok, but copper will always be more reliable.
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