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Dgital Voice in a power cut

Starlored — Thu, 20 Mar 2025 18:37:16 GMT

I'm considering getting full fibre with phone, i'm planning on using my own cordless phones with the Digital voice service.

By what ive read these obviously will not work in the event of a power cut, I noticed in the process of making the order BT offer a Battery Backup wich keeps the Digital voice powered for an hour, it also states that it come with a digital voice phone is this a solution to make a call in a power outage.

Re: Dgital Voice in a power cut

jac_95 — Thu, 20 Mar 2025 18:42:39 GMT

Hi Starlored,

Thanks for the post and welcome to the Community.

This is an automated response as I can see you have a question about BT’s Digital Voice service. Rather than waiting for a response from the Community, you may find an answer to your question by using the search bar on the Community homepage. We also have a thread that contains a wealth of info related to BT’s Digital Voice, click this link to take a look, Digital Voice FAQs.

Got some questions or want to learn more about BT’s Digital Voice rollout? BT are running localised events as part of the regional rollout of Digital Voice - Click here to view the Digital Voice events

To learn more about the nationwide change to this Internet based voice service visit landlinesgo.digital

If you have already looked for the answer to your question and have not found anything that can help, then please ignore this message. One of our Community members will be along shortly to help you further.

Re: Dgital Voice in a power cut

licquorice — Thu, 20 Mar 2025 19:05:22 GMT

As long as your hub and ONT are powered you will be able to make calls.

Whether they are powered by BTs expensive units or by a third party UPS system is irrelevant.

Re: Digital Voice in a power cut

Starlored — Thu, 20 Mar 2025 19:29:08 GMT

I thought that was the case, the only problem is my current cordless phones don't work without power.

Re: Digital Voice in a power cut

imjolly — Thu, 20 Mar 2025 19:43:06 GMT

This a possible answer. https://www.ispreview.co.uk/index.php/2025/03/broadband-isps-vodafone-bt-kcom-and-zen-internet-prep-new-uk-battery-backup.html

Re: Digital Voice in a power cut

Anonymous — Thu, 20 Mar 2025 20:04:07 GMT

@Starloredwrote:

"the only problem is my current cordless phones don't work without power."

Could you not pair your cordless phones directly to the SmartHub2 rather than their current base station?

That way, you will still be able to make calls for as long as the batteries in the handsets last - assuming you also have backup power for the SH2 (and ONT if applicable). You may lose some features of the phones though.

Re: Digital Voice in a power cut

Starlored — Thu, 20 Mar 2025 21:27:43 GMT

The Answer is probally, Ive had a search around the Internet and am confident of a soloution to make calls in the event of a power cut.

Re: Digital Voice in a power cut

licquorice — Thu, 20 Mar 2025 21:57:49 GMT

The simplest answer is to use a corded phone plugged into the green socket at the rear of the hub during a power cut with the hub and ONT powered by a UPS. Alternatively use the UPS to power the cordless base station as well as the hub and ONT.

Re: Digital Voice in a power cut

iniltous — Fri, 21 Mar 2025 09:08:35 GMT

The fact you using a cordless DECT phone currently, that you say you want to keep using should you move to DV and or FTTP , you presumably obviously are fairly relaxed about power outages or you would have a corded phone and not a cordless one ( obvious your DECT phone won’t work without mains ) so why does the prospect of FTTP/ DV cause you any extra angst ? , not having telephony during a power outages presumably is normal for you , irrespective of how likely a power outage is , so why do you need any extra precautions just because of FTTP/DV ?

Re: Digital Voice in a power cut

Starlored — Fri, 21 Mar 2025 09:20:41 GMT

No Angst I just want to get things worked out.

In the event of Putin pushing the button I want to know if I'm still able to call home.

Re: Digital Voice in a power cut

iniltous — Fri, 21 Mar 2025 09:45:07 GMT

In which case you need a corded phone , irrespective of moving to FTTP or DV

Re: Digital Voice in a power cut

fredddd — Wed, 18 Feb 2026 16:20:14 GMT

could you tell me how to do this please?

Re: Digital Voice in a power cut

licquorice — Wed, 18 Feb 2026 16:56:08 GMT

@freddddwrote:
could you tell me how to do this please?

How to do what?

Re: Digital Voice in a power cut

fredddd — Wed, 18 Feb 2026 19:33:29 GMT

could you tell me how to do this please?

Re: Digital Voice in a power cut

fredddd — Wed, 18 Feb 2026 19:34:23 GMT

I was asking about how to pair my handset to the hub instead of the base station

Re: Digital Voice in a power cut

Rach_H — Thu, 19 Feb 2026 18:33:21 GMT

Could you let me know which handset you are using @fredddd?

Rach

Re: Digital Voice in a power cut

fredddd — Thu, 19 Feb 2026 20:01:57 GMT

thank you for responding My current phone is BT 3110 but from my research, it seems that I can't pair this one to my hub or use the green socket in the back of the hub? I am looking at a BT/EE digital voice only phone that can be paired with my hub and will go that route if I have to.

Re: Digital Voice in a power cut

licquorice — Thu, 19 Feb 2026 20:39:20 GMT

Right, first of all if you wish to continue using your handset with the existing base, simply plug the base into the green socket on the hub.

This thread is about using your phones in a power cut. To do that you need to power your hub (and if you have FTTP, the ONT) by means if a UPS.

If you wish to connect your existing handsets directly to the hub without connecting the base to the hub green socket, re-register the handset from the 3110 base and register it to the hub by pressing the WPS button on the hub and following the instructions on page 37 of the manual linked below.

https://telephonesuk.org.uk/wp-content/uploads/2020/12/BT3110-User-Guide.pdf

Re: Digital Voice in a power cut

fredddd — Thu, 19 Feb 2026 20:56:04 GMT

many thanks!