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Home / Replace an NEC or Panasonic phone system

Still running an NEC or Panasonic system? You are probably paying maintenance on hardware installed a decade ago, on copper lines Chorus is switching off, with a technician who has to drive to site to change a greeting.

You do not have to start again. Your numbers come with you, a lot of your handsets can stay, and the new system runs on the internet you already have.

Why these systems are being replaced now

Most of the NEC SV8100s, SL1100s and Panasonic KX systems still running in New Zealand were installed between 2008 and 2015. They were good systems. Three things have caught up with them.

The copper is going

Chorus is progressively switching off its copper network. Systems built around ISDN and analogue lines need converting or replacing.

Parts and support are drying up

Cards get harder to find, technicians who know the platform are retiring, and a site visit is needed for changes you should be able to make yourself.

Staff are not at their desks

A system designed when everyone sat at a desk phone struggles with people working from home, on the road, or across two sites.

What you keep

Your phone numbers

Every number ports across, including your main line and any 0800. Nothing on your signage, vehicles or invoices needs reprinting. Porting is $20 per number.

Often your handsets

If your phones are IP and standards-compliant, many can be reconfigured onto the new system. Older digital handsets cannot, but an adapter keeps analogue devices working. Send us the model and we will tell you straight.

Your dial plan and greetings

Extensions, hunt groups, after-hours routing and menus get rebuilt as they are, unless you want them improved while we are in there.

Your cabling, usually

If the building is already wired for data, the phones use it. No new cabling in most sites.

What changes

  Old NEC or Panasonic 3CX with Kiwi VoIP
Making changes Technician visit, often chargeable You do it yourself in a browser, or we do it while you are on the phone
Working off site Divert to a mobile and lose the caller ID Your extension on a mobile app, showing the business number
Lines ISDN or analogue on copper SIP trunks over your internet, on our network
Cost Maintenance contract plus line rental One annual licence, no per-user fee, no contract
Second site A second system, or a costly link Same system, extensions dial each other free

How the changeover actually goes

1. We look at what you have

Model, how many extensions, how many calls at once, what is plugged into the lines. Usually a phone call and a photo of the cabinet.

2. We build it alongside

The new system is configured and tested while the old one keeps running. Nothing is switched until it works.

3. The numbers move

Porting is scheduled for a time that suits. The old service runs until the port completes, so there is no gap.

Why us rather than the company that installed it

We have done this since 2001

Our founder has been looking after New Zealand phone systems since 2001, and Kiwi VoIP has done it as a company since 2007. We have replaced a lot of these.

3CX Platinum Partner

The top partner tier, with 3CX Advanced Certified engineers. We host it, configure it and support it.

The lines come from us too

System and trunks on one account and one invoice, instead of a phone company and a PBX company blaming each other.

A person answers in about 13 seconds

Measured on our own 3CX system across the support team in 2026. No IVR maze, no offshore call centre.

Common questions

Will I lose my phone numbers?

No. Every number ports across for a one-off $20 each, and your old service keeps working until the port completes.

Can I keep my existing handsets?

Often. Standards-compliant IP phones can usually be reconfigured. Older digital handsets tied to the NEC or Panasonic cannot, but analogue devices work with an adapter. Send us the model and we will confirm before you spend anything.

What happens to my alarm, lift phone or EFTPOS line?

Tell us what else is on the lines before we switch anything. Monitored alarms, lift phones and some older EFTPOS terminals were built for analogue copper and need planning for. Better sorted in advance than discovered afterwards.

Do we have to do it all at once?

No. The new system can run alongside the old one while you move people across, which suits sites that cannot afford any downtime.

What will it cost?

3CX is licensed per system per year rather than per user, so adding staff does not automatically cost more. Send us your current phone bill and maintenance invoice and we will show you the comparison.

Are we locked in?

No. Our services are month to month.

Send us a photo of the cabinet

Tell us the model and roughly how many extensions, and we will tell you what replacing it involves and what it costs. No obligation.

Free bill review Call 0800 NZVOIP