10 Easy Steps to Set Up VoIP on Your Phone Jacks

How to Hook up VoIP to House Phone Jacks for More Efficient Communication

VoIP or Voice over Internet Protocol is a modern way of communication that allows people to make phone calls over the internet. This technology has revolutionized the way we communicate by providing cost-effective and high-quality audio and video calls. However, it requires an active internet connection to work. But thanks to the advancement of technology, users can now hook up their VoIP connection to their house’s phone jacks.

Imagine having the convenience of VoIP around your home network. It would mean no more need for wireless phones, thereby saving you tonnes of money on costly bills. In this article, we’ll take a closer look at how to use elegant hack to hook up VoIP to house phone jacks, without any need for soldering irons or technical knowhow.

The Hack:

The idea behind this hack is pretty straightforward. You leverage the existing phone jacks already in place in your house, which Ma Bell graciously left there. By taking control of the ‘ugly’ box outside your building, cut the leash and connect the VoIP adapter in the box. This will allow you to utilize the phone jacks found all over your house.

To get started, let’s take a look at the materials you’ll need:

1. An Ethernet cable
2. A VoIP adapter
3. A screwdriver
4. An RJ11 telephone cord
5. A pair of scissors or wire cutter

Step-by-step Guide:

Step 1: Locate the Demarcation Box

The first step is to locate the demarcation box which is typically found on the side of your home. This box is easy to recognize because it usually features a box-like appearance or a plastic cover. Using the screwdriver, remove the cover or any obstructing elements to expose the wiring inside.

Step 2: Disconnect the Telephone Line

Once you have access to the wiring inside the box, look for the telephone line which is usually the only cable going into the house. Disconnect this line carefully, making sure it’s not live before removing it. It’s important to ensure that the line is safe to disconnect. Otherwise, consider calling a professional electrician to do the job.

Step 3: Connect the VoIP Adapter

Take the Ethernet cable and connect one end into the WAN port located at the back of your VoIP adapter. The WAN port is usually labeled. Next, take the other end of the Ethernet cable and connect it to the Internet port on the switch located in the wiring box. This allows the VoIP adapter to get an internet connection from your router or modem.

Step 4: Connect the RJ11 Cord

The next step is to connect the RJ11 cord into the phone jack. This cord typically has four or six wires inside it which correspond to the four or six contacts on the phone jack. You can identify the wire color code with the poster found in the wiring box or the internet.

Step 5: Power up Your VoIP Adapter

Once you have connected the VoIP adapter and RJ11 cord, it’s time to plug in the power cable. The VoIP adapter comes with a power adapter that needs to be plugged into a power outlet. As soon as you plug the adapter in, it will start to power up, and your VoIP connection should be ready to use.

Step 6: Test Your Connection

You’re almost done. The last step is to pick up one of the phones in your house and press any button to see if the line is live. If you hear a dial tone, then you’re good to go. You can now pick up any phone jacks in your house, and you’ll hear the dial tone.

Important Note:

It’s essential to keep in mind that most phones get power from the phone line, which means that there is a limit to the number of phones you can connect to a VoIP adapter. Generally, you’ll be able to use three phones with the average adapter. If you have voltage-heavy phones like corded phones, then you might want to consider picking up a ring booster or a compatible adapter to support the additional voltage.


In conclusion, hooking up your VoIP to your home’s phone jacks is a convenient way of enjoying more efficient communication within the house. It can save you tons of money on costs associated with purchasing wireless phones and paying for wireless bills. With just a few materials and simple steps outlined in this article, you can wire up your VoIP connection to your home network and start enjoying the benefits of seamless communication.

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