How to Connect a Home Phone to a Cable Router

by Sara Bailey ; Updated August 29, 2017

With a cable router, you can connect your home phone to the internet instead of a standard telephone line – provided you have a voice over IP, or VoIP service with your cable company. VoIP uses your home's internet access to make local and long-distance calls from a normal home phone. Before you start making any VoIP calls, however, you need to set up the hardware.

Set your home phone next to the cable router so that the connection cable is within reach of the cable router.

If your modem is not already plugged in, connect a coaxial cable from the cable jack to the "Cable In" port on the back of the modem. Plug the power cord into the modem's "Power" input and into a standard wall outlet.

If the "Online" light on the modem is blinking instead of solid, the modem may need to be activated. Refer to your cable company's website, smartphone app or phone support to activate the modem.

Connect a computer or smartphone to the modem. To connect wirelessly, locate the network name, or SSID, and password, sometimes called Preshared Key, on the modem's label. Enter these on your device's wireless network connection menu to connect. To connect with a wired Ethernet cable, plug it into the "Ethernet" ports on the modem and your computer.

Once your computer or smartphone is connected, load a website to verify the modem is online and connected to the internet. If you are asked to accept your cable provider's terms and conditions, do so.

Connect the telephone cable to the "Tel 1" port on the back of the cable router. This port looks like a telephone jack.

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About the Author

Sara Bailey is a writer from Manhattan, N.Y., with work appearing in "Giant" magazine. She is a graduate of Rutgers University in New Brunswick, N.J., where she received her Bachelor of Arts in journalism and communications.

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