Fred has just added dsl service at his home, with a separate dsl modem and consumer-grade router with four ethernet ports. fred wants to use the same old phone he was using before the installation of dsl. which is most likely true about the phone cabling and phone used with his new dsl installation?
a. he uses the old phone, cabled to one of the router/switch device’s ethernet ports. b. he uses the old phone, cabled to the dsl modem’s ports. c. he uses the old phone, cabled to an existing telephone port, and not to any new device. d. the old phone must be replaced with a digital phone.