Thanks for reading this message. If u have buy a Modem to buy External Modem only. Why? It is safe for ur modem. It is power problem. If u r using Internal modem when ur on pc the modem will on and activate and ur phone will be connected with modem. Phone call comes power will send modem call comes. Then swith off ur pc. Phone connection connected with modem. If calls comes modem will affitated. May be u lose ur modem.
U r buy a External Model If ur working in NET then only u will on a modem. Otherwise Swith off ur modem.
External Modem to buy DAX, GVC is best.