Is a telephone line still required when using Charter Internet to access the Internet?
No. You will not need a telephone line when using Charter Internet. The cable line associated with the modem you will use carries both upstream and downstream signals. However, you will need a telephone line if you are using a one-way cable modem. The upstream signal travels via the telephone line to the cable office, then to the Internet. Information that you request is sent back to you via the cable line.
