How to Connect a Cable Modem to a Router and VoIP Modem

Connecting Internet phone service takes only a minute.

Voice over Internet Protocol (VoIP) is a telecommunications technology for placing and receiving phone calls over the Internet. A standard landline telephone connects directly to a VoIP modem, which is then connected either to a cable modem or to a router managing several devices connected to a cable modem. Two Ethernet cables are required to hook up the VoIP box to the router and the router to the modem.

Things You'll Need

• Two Ethernet cables

Instructions

1. Plug the cord on the end of a landline phone into the phone jack on the VoIP modem with the locking tab on the plug turned upward.

2. Connect an Ethernet cable from the VoIP box to the router by inserting the plug on each end of the cable into the jacks on the components. Turn the locking tab upward and push the plug straight into the jack until it clicks.

3. Connect an Ethernet cable from a free port on the router to the cable modem, pushing the plugs into the ports until each clicks securely in place.

Tips & Warnings

• A cordless telephone set with two or more hand units can be connected to a single VoIP box. Then the additional hand units can be plugged in throughout the building.

• Unplug the equipment while connecting Ethernet cables.

References

• FCC: Voice-Over-Internet Protocol
• Why-Switch-to-VoIP: Setting Up VoIP---What Do I Need for VoIP?

Resources

• Read this Article in Spanish