Pages Menu
Categories Menu

Posted by on Jan 29, 2018 in Latest News |

Can you have a corded phone if you have only fibre?

Stop Smart Meters NZ has received a lot of feedback regarding the newsletter on the legislation that appears to be designed to phased out access to the copper landline system in at least some parts of New Zealand.

Removal of the copper landline system would mean that people lose access to the safe copper landline based phones that will work whether or not a home has power and also lose access to the low cost internet option that this infrastructure facilitates.

(If you are not already aware of this issue, please read this link: )

One of the questions is as follows:

Can you have a corded phone if you have only fibre optics in your home?


The answer to this question is basically yes, but there are a few additional important facts to consider.


Voice Quality

The voice quality over VOIP phones can be poorer than traditional corded landline phones that use the copper phone line network and this may be a problem for people who have hearing deficits and and/or those who are communicating on the phone in a language that is not their mother tongue.


Options For Safe Corded Phones With Fibre

If you move to a fibre only system your existing corded landline phone may not work as it is probably designed for copper only.

However, there are ways that you may be able to use your existing copper landline phone.

Option A

The Residential Gateway installed as part of a fibre system may have a POTS (“Plain Old Telephone Service”) port.  If this is the case, you can plug a corded phone into this port and as it should work with the same phone that you use with the copper system.

Option B

If the Residential Gateway installed at your home does not have a POTS port*  another option to have a safe corded phone is to  buy a device called an ATA (“Analog Telephone Adaptor”) that provides a POTS port into which you can plug in the same type of phone that you use with the copper network.

Option C

You could buy a corded VOIP phone and plug this directly into your Residential Gateway in order to have a safe corded phone. From a quick look online, corded VOIP phones start at around $100 each.


Phones that Connect to the Fibre System Will Fail During a Power Blackout – Unless YOU Buy a Backup System

Another important factor to consider is that a VOIP phone (or any phone that is connected via the Residential Gateway to the fibre system) is dependent on mains electricity to work.  This means that unlike the good old copper landline corded phone system which will work in a power black out a VOIP phone (or any other phone that is connected into the fibre system) will NOT function if you lose power.

NB: If you have a cell phone, don’t count on your cell phone to work if you lose electricity, either, as a local power outage could cut power to cellular phone infrastructure resulting in no cellular phone service.

Options For Maintaining a Working Phone During a Power Blackout

It is possible to buy a component of a fibre system called a UPS  (“Uninterruptible Power Supply”) which acts as a back-up so that your VOIP phone will work during a power black out (provided the local cabinet that runs the fibre system in your area does not itself lose power and/or has adequate battery back up itself) but these are not cheap. One UPS I saw online recommended by a NZ telecommunications company was $380 + GST.  There are less expensive options.

The time that a UPS may be able to keep your phone running before its batteries are drained may be variable; it could be as a little as 10 hours. (Obviously the running time of a UPS system is something that should be investigated prior to deciding what system to buy.)

For those who have appropriate technical expertise, a solar panel could be another option to use as part of  a back up system for a phone connected to the fibre network.

UPS systems can contain lithium ion batteries which are an explosion risk in the event of a fire.


So, to sum it up you can have a corded landline if you have fibre only but it may you cost more if you have to buy a new phone or an adaptor.  Moreover,  your phone won’t work if you lose power – unless you buy a UPS which is not part of the standard fibre systems being installed so this would represent an extra cost.

(If anyone has information about how long different brands of  UPS have worked during actual power black outs in NZ, please email through our contact form: )

In short, a basic corded phone that works through the copper landline system provides an economical and safe home phone that will currently work even if you lose power.


* An example of a Residential Gateway with a POTS port may be seen below

Special issues for people who are electrosensitive

One of the reasons that it is important to maintain access to the copper landline system is that a basic corded home phone that works through the copper landline system is the only sort of phone that some people who have become electrosensitive can use.

More information about electrosensitivity may be found at these links:


A helpful paper on electromagnetic sensitivity by Dr. Mallery-Blythe

Retired CEO speaks out on electrosensitivity

Electrohypersensitivity – a short film by Time magazine free to watch online

What is it like to live with electrohypersensitivity (EHS)? One woman’s story


Thank you for visiting


We hope that you will support the new campaign to save copper landline phones infrastructure.  If you are a Grey Power member there is now an extension for submissions on this issue until March 30 2018

Please see the link below for details:

Save NZ’s landline phones – action needed NOW

NB: If you are on Facebook, please consider “liking” and “following” the following pages so that you can get updates on the landline phone  issue and smart meter issues.

Interested in the smart meter or landline phone issue?

Please note that if you would like to receive email updates on the smart meter issue  for NZ, you can sign up to the free email list at

There is also now a dedicated website for the landline phone issue at

%d bloggers like this: