How To Connect NBN Multiple Phone Outlets | Complete Guide

If you’re one of those people who recently made the shift from ADSL to NBN? Well, if this information about the multiple sockets, the connectors, the phone port and your brand new modem confuses you then, we will learn to make NBN multiple phone outlets easily.

Switching to NBN can be a bit frustrating and a little confusing. This is a brand new technology that powers mobile phones and the Internet for the foreseeable future. One issue that customers face is how to get all the existing phone jacks in their homes and offices to work as before with the new NBN VoIP phone service.


In this article, you’ll find a complete guide on how you can connect NBN multiple phone outlets. We’ll also cover how to do your NBN phone setup through your NBN outlet, how to connect your home phone to your NBN modem, and more. 

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2 Types Of Wiring

Let’s understand the wiring that goes into this network of connections with NBN multiple phone outlets as well as ADSL. There are two types of wiring- 

Daisy Chained Wiring

The daisy chain wiring is a wiring strategy that wires multiple devices one after another. This is so much similar to the way in which we join flowers together to form a chain or ring.

daisy chained

This is done by using the stems of the flowers as chains to connect each flower. 

Star Wiring

This is where multiple cables are run from a central point, usually the Telstra (or now NBN)

star wiring

You can imagine Star wiring as a garden hose with multiple connections, with sprinklers coming out of the same line. it will be beneficial in reducing the pressure on the main line. If any of the other lines become clogged or twisted, it can cause regurgitation and thus reduce the effectiveness of the main line. In star wiring, the main copper wire to the house can be affected through multiple wires.

See Also: 11 Best WiFi Routers For Home (And Office Purposes)

How to Connect Home Phone To The NBN Modem?

Connecting your home phone to the NBN modem is easier than you think. With just a few steps, you can easily connect your home phone to the NBN modem.

Before you start your connection or installation process, you need to configure your modem and internet services. If your modem doesn’t have an additional phone connection, you’ll need to connect your phone through a router. It is necessary to verify this information so you know exactly what to do.

Here are the steps:

  1. Turn off the router and disconnect your phone from its power supply.
  2. Now, connect the phone line to the PHONE port of the router.daisy chained
  3. If you are using a DSL modem, use a different telephone cord to connect the DSL port to your wall outlet.
  4. Turn it on again and allow power supply. After a few minutes, your router will boot and a steady light will show on the device.fttn
  5. You can also check your phone and listen for a dial tone to see if your phone is working well. Consider making a test call as well. nbn connect with multiple outlet
  6. If you are using a fiber-optic connection, you should connect your telephone line to the Uni-V port on the NBN connection box.

How to Connect Multiple Outlets In Your NBN Modem

If you have only one number and you want to connect multiple phones, you need to use an adapter to connect both phones in a parallel form to only one phone port.

One of the most efficient ways to do this is to complete the connection with a single cordless base with multiple handsets. Cordless phones also support caller IDs that are enabled by default in the NBN service.

nbn modem

You will need to plug in your handset into your modem, and router for the NBN connection box. This should be done multiple times with each phone. Once you switch to the NBN, phone wall sockets will no longer be able to connect to the telephone exchange. They won’t even work with your handset because now, the NBN is in charge. Depending on how your home is wired, you may be able to connect additional phones to the wall phone jacks. 

See Also: What is a Good Internet Speed? What’s Fast, Slow, and Best for You?

The Phone Splitter

If you want to connect NBN multiple phone outlets to the same modem or wall jack, you will need a phone splitter.

A phone splitter is like a small device that enables you to put in more than one phone connection and use it with an adapter to get a power supply. With this device, you can easily connect 1+ phone connections without much trouble.

phone splitter

 If you are using a dial-up modem, connect one end of the telephone line to the “line” port of the modem and the other end to the jack on the wall.

An RJ-11 one female IN and two female OUT type splitter is a good combination that is easy to use and works well in most conditions. 


Do I need a phone line to get access to the NBN?

Unlike ADSL, the NBN does not necessarily require a phone line to deliver the internet to your premises. It can work without that too. You can definitely access the internet without compulsorily subscribing to a phone or a cable connection. Most companies have offers that align with this.

Can I have more than 1 NBN connection in the same house?

As per the new revised laws under the NBN, you can't get a second NBN connection in the same house. This is why many customers are now finding ways to connect multiple phone sockets through the same modem in NBN.

Can I Connect my Landline to Wi-Fi on the NBN?

It is possible to connect your phone to your router or modem. But this cannot be done in a wireless manner. You must have a physical connection.


It is very simple to make a multiple phone connection with just one NBN account in the same house. With a few steps properly executed, it is not hard to get a connection, set it up for NBN multiple phone outlets. Sometimes, it can seem tricky. And even a little frustrating headache- but hey, you’ve got it now! 

See Also: Fix “Network Settings are Blocking Party Chat” Error

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Aloukik Rathore is a Delhi-based entrepreneur, gadget lover, and absolute geek. He loves spending time learning about new innovations and runs a digital marketing company, Cannibals.