Can't use phone extension with digital voice. NO MOBILE SIGNAL

[Lila]

Well it is as the phones work fine back on a normal landline. 

I am still looking for a solution about what to do in a power cut as well. Apparently we have to have a plan B but nobody can suggest what this plan B is. 

[imjolly]

As you're existing phone BT3510 did not work in a power cut then just do the same if power cut on digital voice

[Lila]

No, I have a back-up corded phone that I plug straight into the BT socket. I always had access to a phone in a power cut - but not now which is more stress.

[iniltous]

Your complaint is somewhat twofold, your complaint about DV is redundant, it’s happening and in your case has already happened…if the lack of telephony during a power outage is such that it needs some mitigation, get a BBU / UPS and the phone service is maintained…

this particular post seems to be on the problems using your existing DECT phones , ( which ironically need mains power to work ) this problem cannot be related to the move to DV , if the existing DECT base unit issue is the same , then the operation of the DECT phones is not altered, it could be by plugging the DECT base station into the router , it has has changed the location of the DECT base station , so the distance between the base station and remote handsets has been increased and connectivity has been made worse , this just means a method to relocate the DECT base station to its  original position needs to be used ( the DV adapter fits the bill ) 

Obviously  if your  DECT phones are defective in some way , the change to DV is irrelevant,  the phones   would be faulty if still on PSTN, FWIW ,  no evidence has been provided that this is anything other than your DECT phones either being defective or out if range from the base station.

TBH , you complaint seems to be more about no telephony during a power outage , than anything else , your emergency corded phone you rely on during a power outage would work in the same way if plugged directly into the router , if the router were able to be powered by a battery back up unit   in the event of a power outage.

If the possibility of no telephony during a power outage is a real concern  get a BBU/UPS .

[Lila]

Your complaint is somewhat twofold, your complaint about DV is redundant, it’s happening and in your case has already happened…if the lack of telephony during a power outage is such that it needs some mitigation, get a BBU / UPS and the phone service is maintained…  I have no idea what either of these are. I asked BT for help regarding power outage and was was told nothing could be done. Perhaps you could post a link to help? 

this particular post seems to be on the problems using your existing DECT phones , ( which ironically need mains power to work ) this problem cannot be related to the move to DV , if the existing DECT base unit issue is the same , then the operation of the DECT phones is not altered, it could be by plugging the DECT base station into the router , it has has changed the location of the DECT base station , so the distance between the base station and remote handsets has been increased and connectivity has been made worse , this just means a method to relocate the DECT base station to its  original position needs to be used ( the DV adapter fits the bill ) The location of the the DECT base station has not changed. It is right next to the hub, where it always has been, as that it where the phone socket is, that the hub is plugged in to. 

The DECT phone does need power to work but my emergency, old 'just plug into the phone socket' phone does not.

Obviously  if your  DECT phones are defective in some way , the change to DV is irrelevant,  the phones   would be faulty if still on PSTN, FWIW ,  no evidence has been provided that this is anything other than your DECT phones either being defective or out if range from the base station.   The DECT phones are not faulty; I tested them today at a relative's who is vulnerable and so will not have DV until BT can solve all of the issues it has caused. 

TBH , you complaint seems to be more about no telephony during a power outage , than anything else , your emergency corded phone you rely on during a power outage would work in the same way if plugged directly into the router , if the router were able to be powered by a battery back up unit   in the event of a power outage.  The hub has no battery back-up. The only battery back-up I read about provides power for an hour and has not been offered as a solution by BT. I am not sure how an hour will help, particularly if it goes off overnight. 

If the possibility of no telephony during a power outage is a real concern  get a BBU/UPS . Again, please provide a link. BT said there was 'no hope' (their words). 

Thank you

[iniltous]

Posting links to  commercial sites  often  are deleted as it’s against forum rules , search EE shop Battery Back Up  , to find these things yourself, there are many places to obtain BBU / UPS ( uninterruptible power supply’s  ) though,  not just the EE shop , ( I quote the EE shop as AFAIK the BT shop is no longer available ) .

If  you are a vulnerable customer ( and that’s not a status you can assign to yourself , it’s if BT consider you a vulnerable customer ) then this equipment may be supplied for ‘free’ but if being unable to use a landline type phone during a power outage while simultaneously having a flat battery in your mobile phone,  is such a big concern as you say it is  , presumably you would purchase the equipment yourself regardless of qualifying for ‘free’ equipment.

….there are varying power ratings for this type of equipment ( how long a BBU woukd keep a router powered up ) but the regulators requirement is for a minimum of an hour of backup , quite cheap BBU/UPS can achieve this .

[imjolly]

@Lila 

just enter BBU/UPS into your web browser and you will get numerous entries which you can select and find out more about it

However you have already confirmed you have a working mobile albeit only working in certain rooms in your home but that is no different to lots of people where mobile only works well in certain locations in house.  As far as flat mobile battery that is your problem and up to you to ensure mobile battery is fully charged - not an onerous task

in the current position does your extension phones connect to the 3510 base unit.  if so can you talk between base and extension ( not make call).  I have asked this before but you have never confirmed your extension phones connect to the 3510 base unit

The only thing that has changed in your setup is that the SH2 is now a DECT base station and may be causing interference with the DECT connection between your 3510 base and the extension phones.  Have you tried just moving the 3510 base unit as far from the hub as the cable will allow and see if handsets now connect to the 3510 base

As has been repeated often - this is not a digital voice problem as you can make and receive calls on your base station and also on old corded phone.  The problem is your extension phones are not connecting to their 3510 base station

[Lila]

@imjolly
I am so glad to read that finally you accept there is a problem with digital voice as the hub may be causing interference with my phones. This is a problem with the digital voice service. It is not serving. We have established it is not a problem with my phones, it is a problem with the service as BT were incorrect when they said my phones would work. They do not because of digital voice. Please do not keep repeating that this a not a digital voice problem. It is a problem because of digital voice. Digital voice has caused a problem. A problem exists because of digital voice. I am running out of ways to explain it. Short of having the phone plonked on the floor, the base can't be moved.
I cannot talk between extension and base - there is no connection. There is a dial tone. The phone rings but then the digital voice service fails.
Can you confirm a battery backup lasts only for an hour? In which case, I would consdier useless.
I have mobile signal only in some parts of the house and I realise you are struggling to understand but it is absolutely vital I have access to a phone at night. It doesn't matter if I have a charged mobile or not. With BT switching me to DV, I now do not have this and I need this resolved. BT, as has been mentioned, show such little respect for us that they have offered no solution - just cut off the landline, telling me the phones would work well. They don't.

[Lila]

@iniltous I would happily pay anyone to reinstate my landline.
Regarding the battery back up, does it last for an hour? In which case, I can't see how much use that would be.

[imjolly]

@Lila 

this is not a digital voice problem - it is a problem with your extension phones not connecting to your 3510 base.  you have confirmed that DV works with your 3510 base phone and with your old corded phone just you cannot get your extension phones to work.  They do not appear to be connecting to their base unit.  Have you tried moving the base unit further away from the SH2?

I cannot understand why you keep going on about problems if you have a power cut as you have a working mobile phone which will connect anytime of day as long as you keep charging the battery

when was your last power cut?  did it last longer than 1 hr?

Have you checked BBU/UPS in your browser as there are numerous options with varying costs and length of time they provide