Calls from a One NZ mobile to another One NZ mobile drop at the stroke of midnight every night

Forums › One NZ (including Farmside) › Calls from a One NZ mobile to another One NZ mobile drop at the stroke of midnight every night

LurkingKiwi

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#321546 28-Aug-2025 00:14

My brother in Palmerston North has an iPhone SE 2 on-account with One NZ.

My phone in Porirua is a Samsung S21FE on-account with One NZ.

We often talk late at night, and have recently been noticing that the call drops at the stroke of midnight whenever we talk that late.

We both have VoWiFi disabled as far as we know.

Any ideas why this may be happening?

1 | 2

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#3407990 28-Aug-2025 06:10

Your mummma…..

she’s telling you to goto sleep.

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#3407992 28-Aug-2025 06:37

I have let someone know on the technical side but they may require A & B mobile number

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#3407993 28-Aug-2025 06:39

Oh they responded already with ' power saving on the site kicking in '

Power saving by kicking the call off the mobile network! lol 😀 😆 🤣

Batman

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#3407995 28-Aug-2025 06:56

Linux:

Oh they responded already with ' power saving on the site kicking in '

Power saving by kicking the call off the mobile network! lol 😀 😆 🤣

i gather they're not on a night rate power plan ...

xpd

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#3407996 28-Aug-2025 07:00

Here One, LMGTFY ;) https://www.google.com/search?q=broadband+phone+power&oq=broadband+phone+power

XPD / Gavin

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#3407997 28-Aug-2025 07:01

The higher 4G / LTE frequencies on some sites get shutdown at midnight to lower power consumption

What surprised me is calls in progress don't get handed down to the lower frequencies that are not getting powered off

So if A & B party were using Wi-Fi calling the call would not drop at midnight

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#3408001 28-Aug-2025 07:38

To bad if you are on a 111 call

MaxineN

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#3408002 28-Aug-2025 07:46

Linux:

The higher 4G / LTE frequencies on some sites get shutdown at midnight to lower power consumption

What surprised me is calls in progress don't get handed down to the lower frequencies that are not getting powered off

So if A & B party were using Wi-Fi calling the call would not drop at midnight

Well if the network isn't sending a hand off as this happens ;)

Ramblings from a mysterious lady who's into tech. Warning I may often create zingers.

cddt

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#3408007 28-Aug-2025 08:13

Have you noticed anything turning into a pumpkin at the same time?

My referral links: BigPipe | Mercury

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#3408050 28-Aug-2025 10:38

Linux:

Oh they responded already with ' power saving on the site kicking in '

Power saving by kicking the call off the mobile network! lol 😀 😆 🤣

Comical idiots running the network is never a good thing.

Richard rich.ms

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#3408089 28-Aug-2025 13:24

I've asked One NZ about this. More information: https://media.one.nz/ainetworksustainability

We’re on a mission to reduce our carbon emissions, as part of our Sustainability Kaupapa and Network Forward strategy. One of the ways we do this is through energy efficiency measures and by turning off or turning down parts of our mobile network when customers aren’t using it, a bit like the standby function on your television.

We have saved 24 GWh (gigawatt hours) over the last two years since we started optimising energy supply and demand. In New Zealand standards, this is equivalent to 1,720 tonnes of accumulated CO2-e (carbon dioxide equivalent), using the latest Ministry of Environment figures*.

Thaigan Govender, GM Mobile Network, says: “We use advanced functionality available on our newer 4.5G and 5G cell site equipment to optimise our mobile services. This means cell sites can be switched back on almost instantaneously if the network senses customers trying to connect, meaning our customers don’t notice.

“As you’d expect, there aren’t a lot of people using their mobile phones between midnight and 6am, so this is when we save the most power. These savings really add up, totalling equivalent to 1,720 tonnes of CO2-e over the past two years.”

This solution currently uses machine learning, and has been ramping up over the past few years to be fully automated. Now the One NZ team is working to apply advanced artificial intelligence (AI) to manage the networks’ power consumption and load balancing. This makes it incredibly efficient and can even predict future low traffic periods based on historic data.