My DSL modem is several years old and I want to upgrade can I just buy another modem and plug it in or does it need to be set up? - Quora
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ZyXEL P660HN-51R Adsl/ Adsl2+ Wi-Fi Router with Built-in Modem Compatible with CenturyLink, Frontier, AT&T and Other Broadband Providers P660HN-51 : Amazon.ca: Electronics
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