Thanks for that additional information. It looks like an elegant solution but it does however add significantly to the cost. I have 4 cordless handsets at present with one being the base station/answering machine. Your suggestion would seem to add about £200 to what was otherwise a near zero cost migration to an interim FTTC solution for voice and a very slightly cheaper monthly cost.

This situation has arisen because my current contract with Plusnet for ADSL broadband/telephone is nearing its end and for several reasons I am considering moving to another broadband/phone provider.

I do not yet have any date for FTTP availability at my address (there appears to be a technical/contractual problem with our road) so I am considering moving to an interim FTTC voice/data solution although I do not need any more bandwidth over my existing FTTC data service..

Apart from this issue of connecting my existing phones the net cost to me is around zero give or take an odd cable. A contract with Vodaphone for example would be very slightly cheaper than Plusnet.

I realise that I do not have the current technical knowledge of what is available on the market as I have not needed needed to keep up since I retired. Prior to that I was fully up to date with the technology. Suggestions made here are however being very helpful

Hi,

In reply to a post by steelej02:

Thanks for that additional information. It looks like an elegant solution but it does however add significantly to the cost. I have 4 cordless handsets at present with one being the base station/answering machine. Your suggestion would seem to add about £200 to what was otherwise a near zero cost migration to an interim FTTC solution for voice and a very slightly cheaper monthly cost.

This situation has arisen because my current contract with Plusnet for ADSL broadband/telephone is nearing its end and for several reasons I am considering moving to another broadband/phone provider.

I do not yet have any date for FTTP availability at my address (there appears to be a technical/contractual problem with our road) so I am considering moving to an interim FTTC voice/data solution although I do not need any more bandwidth over my existing FTTC data service..

Apart from this issue of connecting my existing phones the net cost to me is around zero give or take an odd cable. A contract with Vodaphone for example would be very slightly cheaper than Plusnet.

I realise that I do not have the current technical knowledge of what is available on the market as I have not needed needed to keep up since I retired. Prior to that I was fully up to date with the technology. Suggestions made here are however being very helpful

OK, noting that the cost of a N300A plus one handset is £84.99; assuming that they are GAP compliant you could reuse your other DECT handsets.

If you just want to wire from an analogue port on your router then I would get:
1. A cable with the right connector for the router on one end (usually a RJ11) and a BT connector on the other. If it is an RJ11 then those leads are quite common (used for phones, modems, faxes, etc.). if your router has a BT style socket then BT to BT patch leads are available.

2. A twin BT socket (you may need a master if you want to guarantee that all phones ring correctly).

I'd then remove the extension wiring from the existing BT master and connect it to the new twin socket making sure that all the extension wiring is isolated from the incoming phone line. You can then simply plug your existing phone into one socket and the lead from the router into the other - job done (from a wiring perspective at least).

I have been looking at my existing wiring n=and contemplating alternatives with minimal changes
I have never tried putting a link in here but these were my thoughts. The diagram is published on my own website shows the existing configuration installed bout 8 years ago when I was somewhat more agile.(now over 80!).

https://www.soroban.co.uk/extra-files/VOIP%20router%...

This solution would add voice back to the FTTC path back to the local box - I don't know if it would cause problems.

IF this solution works then then all I might need would be some readily available low cost cables e.g. BT to RJ11. I envisage any similar solution only surviving until FTTP becomes available but I di need something that is very easy to do which takes very little time when/if IP voice is configured.

It has proved more complex that I originaly expected toswitch to voice over FTTC.

For Voice Re-Injection (VRI); in terms of keeping / reusing your extension cabling from the voice output port of a VOIP equipped router, you've basically got two options:

1. Modify your existing (NTE5c master socket with VDSL-specific) faceplate, as per the instructions on A&A website. This is the cheapest method, but requires a bit of dexterity getting the back cover off the faceplate and some snipping with a pair of small cutters to remove un-wanted components on the faceplate circuit board.

2. Obtain a "SOGEA VRI Isolation" like replacement front plate, as per my post above. *IF* your existing socket is an NTE5c, then this is the least hassle method, as its literally just a faceplate swap out, but has a modest cost.

It has proved more complex that I originaly expected toswitch to voice over FTTC.

There really are just two factors it boils down to: (a) in the simplest scenario you can run all your existing phones from the voice port on the router, instead of the BT wall outlet and (b) ensure you isolate the external/incoming BT line from your extensions (and voice port on the router). Either of the options (1) or (2) above will suffice.

Hi,

In reply to a post by steelej02:

I have been looking at my existing wiring n=and contemplating alternatives with minimal changes
I have never tried putting a link in here but these were my thoughts. The diagram is published on my own website shows the existing configuration installed bout 8 years ago when I was somewhat more agile.(now over 80!).

https://www.soroban.co.uk/extra-files/VOIP%20router%...

This solution would add voice back to the FTTC path back to the local box - I don't know if it would cause problems.

IF this solution works then then all I might need would be some readily available low cost cables e.g. BT to RJ11. I envisage any similar solution only surviving until FTTP becomes available but I di need something that is very easy to do which takes very little time when/if IP voice is configured.

It has proved more complex that I originaly expected toswitch to voice over FTTC.

What you show in your PDF will not work. There MUST be no electrical connection between the extension wiring and the incoming ADSL/VSDL line, except via your router and at the moment you are not showing that you are modifying the NTE5.

If you want to minimise wiring changes then Pheasant's suggestion to use a VRI faceplate is the simplest solution. I didn't suggest it for two reasons - (1) They are quite difficult to get hold of and (2) I would prefer to keep the incoming line and the extension wiring in separate boxes to keep it clear that they are electrically separate. If you really want to go down that path then "run it direct" do a VRI kit which looks very much like it is a standard Openreach NTE modified as suggested on the A&A website. That is £26.99, a bit expensive for what it is but it comes with all the leads you might need.

i still feel that providing you have the money available then going for a VoIP DECT solution and retiring the extension wiring is the simplest and easiest option.

@steelej02 - I’ve sent you a PM.

I use a Fritz!box 7530.
Have connected the phone socket on the Fritz!box to the phone socket on the BT mastersocket AFTER pulling out the faceplate.
If your extension wiring has been done properly all your extensions are now connec ed to the ATA built into the router.

Crude but works for testing
[img]https://i.postimg.cc/9Q79vYMN/Phone-connection.jpg[/img]
Just connect phone socket on router to unplugged front plate

In reply to a post by rarrar:

Crude but works for testing
[img]https://i.postimg.cc/9Q79vYMN/Phone-connection.jpg[/img]
Just connect phone socket on router to unplugged front plate

All you are doing there is isolating the standard NTE5 faceplate (still having two (?) previously filtered extensions) from the Mk3 xDSL interstitial filter faceplate. Certainly OK for testing VoIP/FTTP in your setup but may not be relevant to the OP. Also a phone can no longer be plugged into the detached faceplate, which may have previously been the case with PSTN, because the router is connected to it via a BT plug to RJ11 plug cable (?)

Edited by 4M2 (Wed 04-Dec-24 21:15:40)

Obviously the router would be plugged into the diagnostic socket and a double adapter used if another phone was needed in the extension half facia.

In reply to a post by 4M2:

]
All you are doing there is isolating the standard NTE5 faceplate (still having two (?) previously filtered extensions) from the Mk3 xDSL interstitial filter faceplate. Certainly OK for testing VoIP/FTTP in your setup but may not be relevant to the OP. Also a phone can no longer be plugged into the detached faceplate, which may have previously been the case with PSTN, because the router is connected to it via a BT plug to RJ11 plug cable (?)