I was wondering if I bought a Cable Modem / Wifi router (http://www.amazon.com/gp/product/B00ZUPOF7Y?psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=ATVPDKIKX0DER) would I still be able to keep Optimum Voice? Does it have to run through the Cable Modem or do they have a device like Vonage that just plugs into the network? I want to upgrade my router.
Thanks.
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