want to purchase my own modem/router but want to keep the phone line
Looking to purchase my own modem to save rental fees. I want to keep my phone line. As I understand, I can not purchase a modem that will work with the phone line, but can be provided for free a modem for the phone from cox. Will this modem also provide me with internet - I have the preferred plan (150 Mbps)? If not, what exactly do l need to do?