This topic

Re: Smart hub 3

Daedalus2000 — Wed, 24 Jun 2026 13:06:38 GMT

Given that for ages we have been told that changing to DV is 'simple' - just plug your old phone (or DECT base station) into the green port on the back of the SH2, it would appear now that the SH3 does not have a green phone socket at all! Is that true?

As far as I can tell, the 'solution' is to use a Network Adaptor instead. Seems a complicated and cumbersome solution to me. Also the SH2 socket has a REN of 4, whereas apparently the Adaptor is only 2, which further reduces the extent to which residential customers can support their old systems with minimal change.

In effect therefore the 'free' Adaptor that we get for changing to DV is actually needed to support a deficiency in the SH3 and we will have to buy another adaptor if we still need once elsewhere .

Re: Smart hub 3

imjolly — Wed, 24 Jun 2026 13:10:28 GMT

My SH3 definitely has a green phone socket for DV

Re: Smart hub 3

gg30340 — Wed, 24 Jun 2026 13:12:12 GMT

@Daedalus2000wrote:
Given that for ages we have been told that changing to DV is 'simple' - just plug your old phone (or DECT base station) into the green port on the back of the SH2, it would appear now that the SH3 does not have a green phone socket at all! Is that true? No. The residential Smarthub 3 has a phone socked. The BT Business Smarthub 3 does not.

Re: Smart hub 3

WSH — Wed, 24 Jun 2026 13:14:28 GMT

The business version of the hub 3 does not support DV. (It never did because industry tends to use VoIP instead). As I understand it the new domestic version of the Smart Hub 3 does have the socket.

REN really referred to support for the old mechanical bell systems. Modern phones use electronic ringers and so REN is not as important as it was.

Re: Smart hub 3

Usband — Wed, 24 Jun 2026 13:19:00 GMT

There is supposedly smart hub 3 !!!!on eBay rear of device shows green socket for conventional phone plug. Haven’t seen any official specs yet so have to wait and watch but doubt they will be supplying these smart hub 3 for existing residential customers unless you’re reconracting or new customer

Re: Smart hub 3

gg30340 — Wed, 24 Jun 2026 13:22:17 GMT

@Usband

See link

BT Smart Hub 3 | BT Device Help | | BT Help

Using a SH2 and a SH3 with DV

Daedalus2000 — Wed, 24 Jun 2026 20:16:14 GMT

I came across an existing thread on this subject, but then lost it, so sorry if this is a repeat question.

Comsider a FTTP connection to a SH3. Re-use the old SH2 purely as a network switch to provide more Ethernet ports. Turn off the DHCP server, change the IP address etc on the SH2. AIUI so far that will work.

Now....suppose currently there is old analogue phone(s) connected into the DV phone on the SH2. The SH3 does not have such a port. Is it possible still to support the legacy kit through the SH2 rather than having to (say) use a Network Adaptor paired to the SH3?

Re: Using a SH2 and a SH3 with DV

licquorice — Wed, 24 Jun 2026 20:45:02 GMT

Why does everyone keep repeating the inaccuracy that the SH3 doesn't have a phone port? The RESIDENTIAL SH3 has a phone port, the Business hub 3 doesn't.

Which you were told in another thread!!!!

In any event, only the hub connected to line has the ability for DV, the secondary hub does not have DV connectivity.

Re: Using a SH2 and a SH3 with DV

WSH — Wed, 24 Jun 2026 20:55:25 GMT

Why use the SH2 as a switch?

You can buy an 8 port switch for under £20 and they're just plug and play. No faff setting them up, just one connection to the SH3 and plug everything else into the switch.

And , as been said several times now, the "Smart Hub 3"'s being advertised on eBay etc. are actually the business version and do not support DV. The real Smart Hub 3 does have a phone socket, but buyer beware!

Re: Using a SH2 and a SH3 with DV

gg30340 — Wed, 24 Jun 2026 21:04:43 GMT

@Daedalus2000

See message 6.

Re: Using a SH2 and a SH3 with DV

Daedalus2000 — Thu, 25 Jun 2026 09:26:03 GMT

Noted, thanks

That was what I had seen previously 🙂 which is why I had thought that the residential SH3 did have a phone socket.

But every time I've tried to download any sort of user guide for the SH3 from the BT website I just get one that does not show or mention any phone socket. See https://www.bt.com/content/dam/bt/help/broadband/smart-hub-3/ug-bt-smart-hub-3-fttp.pdf

Anyone know please where to find the equivalent for the residential version? I can't download anything from what is shown in Message 6 as I have no means of scanning the QR code.

If the residential version does indeed have a DV socket then no problem, I was only proposing to use the SH2 as a possible alternative, but not necessary now. In any case, while the SH3 would have a BBU, the SH2 or a Network Adaptor would not 😞

Re: Using a SH2 and a SH3 with DV

pippincp — Thu, 25 Jun 2026 10:21:38 GMT

Last line in this paragraph.

Re: Using a SH2 and a SH3 with DV

gg30340 — Thu, 25 Jun 2026 10:37:22 GMT

@Daedalus2000

If you look at the date of the page from the link you posted you will see it is dated 2025.

The residential Smarthub 3 was not brought out and made available until 2026.

The link I posted is on the Internet and is easily found.

If you read the instructions for the QR code in the link I posted it tells you it is to download the MyBT app and it tells you it is on the Playstore or Apple store.

You do not need to use the QR code to get to those stores or to download the MyBT app.

Do you have a SH3 or are you just wanting to get one from somewhere and if so why?

Re: Using a SH2 and a SH3 with DV

Daedalus2000 — Thu, 25 Jun 2026 10:39:40 GMT

Noted, thanks, but I have nothing on which I can run the BT App.

Re: Using a SH2 and a SH3 with DV

gg30340 — Thu, 25 Jun 2026 10:49:21 GMT

You can log onto your MyBT using a computer.

You can set up the SM3 without using the MyBT app.

Given what you have already posted I doubt you would need or use any of the features on the MyBT app and you will manage fine with logging onto your MyBT with a computer.

Re: Using a SH2 and a SH3 with DV

Daedalus2000 — Thu, 25 Jun 2026 15:09:17 GMT

Last month BT sent me a letter to say that I was being upgraded to DV (staying on FTTC) and that they needed to send me a new router. No reason given.

Given that I already have a SH2 on my FOTC connection I assumed that they must be sending me a SH3 - hence my interest in that model - after all, why would they send me just another SH2? So I wrote to BT to get confirmation that I would be getting a residential SH3.

Their reply today is that I can not have a SH3 because (a) it will not work with my broadband service and (b) it will not support the new DV. Eh???? Once again, no explanation given, so I am baffled as to why that should be the case? Are there any underlying technical differences that might cause this problem please?

Just curious, as it seems a weird situation.

Re: Using a SH2 and a SH3 with DV

WSH — Thu, 25 Jun 2026 15:16:37 GMT

Ah, that puts 2 and 2 together.

Firstly, I believe the early version of the SH2 did not support DV, so you may need one of the later models for your change to DV. Secondly, I believe the SH3 does not support FTTC connection, only Full Fibre FTTP.

I might be contradicted on those points, as I am not an ex-BT employee and so I'm going on what I seem to have heard over the past few years.

Re: Using a SH2 and a SH3 with DV

Daedalus2000 — Thu, 25 Jun 2026 15:27:33 GMT

Well, going back to the detail provided previously in message 6, that illustrates quite clearly AIUI that (a) there is a 'broadband' port and also (b) cable and filter for connection to FTTC.
Which is precisely why I was asking BT to confirm that I would be getting a SH3 with those features, as well as the WAN port for later upgrade to FTTP.

Sadly, so far, every time thay have given me a specific piece of information upon which I have relied for planning my upgrade, they eventually - after persistent questioning - admit that I have been mis-informed 😞

Re: Using a SH2 and a SH3 with DV

WSH — Thu, 25 Jun 2026 15:38:19 GMT

Well, I did say I might be wrong. I’m a retired IT tech, so I’m pretty knowledgeable on that side of things. Not so much on BT equipment.

Sorry I couldn't help.

Re: Using a SH2 and a SH3 with DV

Daedalus2000 — Thu, 25 Jun 2026 15:45:54 GMT

Much the same here 🙂 Perhaps that's the problem - I can spot poor design or corporate b*** s**t a mile off 🙂