In reply to a post by APTMAN:

Update.
Looking into to do away with ADSL 2 isp and copper pair, (saving about £636 year ) porting the number to AA first.
or
Looking into a completely separate system for the phone (like phones use to be) .

In talks with BT and Openreach Executive office about using a Second port on the ONT (either ONT swap or Another ONT feed in line, as there is a spare 'Lit' port in my 4 way CBT for our property )
possibly using WBC FTTP 0.5 / 0.5 Mbs product plus Smart Hub, Only for VOIP phones... early days yet.

I think you are showing a fundamental misunderstanding of the capability of TCPIP. The whole purpose of the internet and TCPIP is to provide one communications channel for many services. What you want from the internet is hung on the wire in many places across the internet and you extract it in your premises with your own kit. That includes web browsing, on-line games, films, control of your central heating, remote access into security cameras [going the other way]. There is nothing special about telephone service which means it benefits from its own separate internet any more than any other service, once you face up to the inevitable, that all telephony is going on the internet in the medium term.

In reply to a post by APTMAN:

Update.
Looking into to do away with ADSL 2 isp and copper pair, (saving about £636 year ) porting the number to AA first.
or
Looking into a completely separate system for the phone (like phones use to be) .

Just get a SIP service from AAISP. Porting the number to AAISP will automatically cease the ADSL2 service and the underlying PSTN phone line simultaneously.

Run the SIP service over your FTTP line. Job done.

Buy the Acrobits Softphone app for the grand cost of I think £6 (one-off, no ongoing charge) and then you'll be able to make and receive "landline" calls from anywhere on your mobile phone.

As others have said, you're making this very complicated and adding cost for no benefit

Aptman needs phone minutes so a&a may not be the best route

In reply to a post by APTMAN:

In talks with BT and Openreach Executive office about using a Second port on the ONT (either ONT swap or Another ONT feed in line, as there is a spare 'Lit' port in my 4 way CBT for our property )
possibly using WBC FTTP 0.5 / 0.5 Mbs product plus Smart Hub, Only for VOIP phones... early days yet.

This has got to be the worse misuse of the Openreach Executive office I've ever heard of, what next calling the hospital because of a broke toe nail.

You don't have to have outgoing calls routed via your incoming number provider. I have an AA number - but anything outgoing goes via a totally different provider who
- charges way, way less for calls - about £25 per YEAR
- transmits my AA number as caller ID
- but does not provide incoming numbers themselves.

In reply to a post by APTMAN:

Update.
Looking into to do away with ADSL 2 isp and copper pair, (saving about £636 year ) porting the number to AA first.
or
Looking into a completely separate system for the phone (like phones use to be) .

In talks with BT and Openreach Executive office about using a Second port on the ONT (either ONT swap or Another ONT feed in line, as there is a spare 'Lit' port in my 4 way CBT for our property )
possibly using WBC FTTP 0.5 / 0.5 Mbs product plus Smart Hub, Only for VOIP phones... early days yet.

As per posts above.

This seems an incredible length to go to; there really is no additional resilience or any other benefits I can think of, only extra cost and complexity.

For what purpose is this required?

In reply to a post by Pheasant:

This seems an incredible length to go to; there really is no additional resilience or any other benefits I can think of, only extra cost and complexity.

Plus the cost of renting the standalone service telephone circuit from BT and the high BT call costs compared to other VOIP providers just doesn't make sense. The OP sold this as trying to save money by cancelling the ADSL circuit but then has added in additional unnecessary circuit cost.

In reply to a post by APTMAN:

Update.
Looking into to do away with ADSL 2 isp and copper pair, (saving about £636 year ) porting the number to AA first.
or
Looking into a completely separate system for the phone (like phones use to be) .

I am with A&A having ported my PSTN number from TalkTalk to them, I cannot fault them and the charge £1.44 per month for the rental of the number. They charged a one off £12 for the port.

In talks with BT and Openreach Executive office about using a Second port on the ONT (either ONT swap or Another ONT feed in line, as there is a spare 'Lit' port in my 4 way CBT for our property )
possibly using WBC FTTP 0.5 / 0.5 Mbs product plus Smart Hub, Only for VOIP phones... early days yet.

Not quite sure of the purpose of this. I have another account with Voipfone and I paid them £5 to register my PSTN number with them, then if I call anyone I can choose either A&A or Voipfone to make the call from.

Calls back to my landline are routed via a Gigaset N300IP plus my mobile via Acrobits Softphone as recommended on here. It handles both providers.

In reply to a post by Pheasant:

In reply to a post by APTMAN:

Update.
Looking into to do away with ADSL 2 isp and copper pair, (saving about £636 year ) porting the number to AA first.
or
Looking into a completely separate system for the phone (like phones use to be) .

In talks with BT and Openreach Executive office about using a Second port on the ONT (either ONT swap or Another ONT feed in line, as there is a spare 'Lit' port in my 4 way CBT for our property )
possibly using WBC FTTP 0.5 / 0.5 Mbs product plus Smart Hub, Only for VOIP phones... early days yet.

As per posts above.

This seems an incredible length to go to; there really is no additional resilience or any other benefits I can think of, only extra cost and complexity.

For what purpose is this required?

Aptman went from "spending too much with every service separate" to 💡 of removing redundent adsl/copper services to "two operate fttp services" thus inflating costs that don't need to be applied