Forward missed calls on a One NZ home or business phone.

On a One NZ home or business phone, dial *92NUMBER for calls you don’t answer and *90NUMBER for when you’re busy. Replace NUMBER with the number you’re forwarding to and press call after each. To turn it off, dial *93 and *91.

The codes

When you do not answer: Turn on: *92NUMBER. Turn off: *93.
When you are busy or press decline: Turn on: *90NUMBER. Turn off: *91.
Every call, straight away: Turn on: *72NUMBER. Turn off: *73.

Change how long your phone rings first.

Fixed: the phone rings for 10 seconds before the call moves on.

Things to know on One NZ home or business phone.

Voicemail and the Call Diversion feature must be on first. Call One NZ on 0800 438 448 to turn them on.
One NZ charges a monthly fee for Call Diversion, and diverted calls to a mobile are charged unless your plan covers them.

Before you dial.

Dial the code, then the number, from the landline you want to divert.

Where these codes come from.

These are One NZ home or business phone’s own codes, from its help page (One NZ: phone divert over broadband). We checked them on 21 October 2026.

Why forwarding fails, and the fix.

Voicemail took the slot back. Voicemail uses the same “no answer” setting, and some phone updates restore it. Dial the check code; if it shows your voicemail number, dial the forwarding code again.
Live Voicemail on iPhone, or Take a Message on Pixel, answers first. Turn it off in the Phone settings.
Wi-Fi Calling is on. Some networks reject codes over Wi-Fi. Switch Wi-Fi Calling off, dial the code, then switch it back on.
Prepay or pay as you go. Many prepay plans block forwarding or only allow voicemail. The network page above says which.
The number is in the wrong format. Use the format your network asks for, with no spaces.
Dual SIM. Codes apply to the SIM that dials them, so dial from your business SIM.
The ring time is too short. Under 15 seconds you lose calls you were about to pick up. 20 seconds suits most people.

Test it in two minutes.

Ask someone to ring your number three times. Each call should reach the number you forwarded to:

Let the first call ring out. That tests “no answer”.
Press decline on the second. That tests “busy”.
Turn on flight mode for the third. That tests “phone off”.

Forward them to a receptionist, not a voicemail box.

Most people forward missed calls to voicemail, and most callers hang up on it. Aroha gives you a number to forward to. Its receptionist answers in your business’s name, books the job or takes the details, and texts you a summary. Your phone still rings first, and the cancel code switches it off any time.

Get a free number: Aroha answers up to 60 minutes of calls in your first 14 days, then about 10 calls a month for free. No card. The setup screen shows these codes with your number already filled in.

Source

One NZ: phone divert over broadband: https://one.nz/faq/phone-divert-service-for-voice-calling-over-broadband

Questions

How do I turn off call forwarding on One NZ home or business phone?

Dial *93, *91, *73 and press call. Your phone goes back to normal straight away.

How do I check whether call forwarding is on?

Open your phone’s call forwarding settings; it shows the number calls go to.

Why do missed calls still go to voicemail on One NZ home or business phone?

Voicemail uses the same “no answer” setting, so the last one set wins. Dial the forwarding code again, and on iPhone turn off Live Voicemail.

Can I forward One NZ home or business phone calls to an AI receptionist?

Yes. Forward your missed calls to the number an AI receptionist gives you, using the codes above. Aroha answers in your business’s name and texts you the details. Start free.