The Shift from TDM Networks to IP Networks: Why it Won’t Happen Overnight
It’s no secret that there is a significant trend related to the growth of IP (Internet Protocol) networks, as well as a serious movement toward making IP the de facto network. However, the older TDM (Time- Division Multiplexing) networks still exist, which begs the question: If there is a huge push to switch to IP networks, then do TDM networks still even need to exist? Or can and should they automatically be replaced by IP as soon as possible? There are actually a couple of reasons why TDM networks still need to continue to exist, at least for awhile, despite the fact that IP networks are taking over. One reason relates to the technology itself. The other relates to regulatory issues and previous infrastructure investment costs.
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