Switching FTTP Providers

Hi,
After some advice,
We are with BT Residentail for FVA-Line Rental and Broadband over FTTP 80/20
contract soon for renewal and i am looking at switching to Zen FTTP for a static ip option on the 40/10 Package - no need for the high end speeds at present.
I want to keep our landline number so in theory this means i need to keep voice rental with BT as Zen do not offer FVA over FTTP for telephone lines,
can anyone shed a light on if im correct in what i am thinking/beleiving
of keeping landline/rental with BT and then using Zen without line rental for FTTP 40/10
so BT line rental and Zen Broadband?
Thanks in advance.

Porting your phone number to a VOIP provider such as Voipfone or Sipgate would be one way to keep the number.

I have recently ported two BT landline numbers to Port5060 and use a VOIP service. I did this as the numbers are important to us but carry little traffic however, some traffic can be lucrative.

No idea of how the rules are on this, but suspect FVA will tie you to the broadband provider or at least cause lots of confusion for BT Retail

Porting to a voip service as others suggest is a good idea, can then even run voip clients on your mobile so make home phone calls when away from home e.g. answer phone as if at home when on holiday

In reply to a post by MrSaffron:

Porting to a voip service as others suggest is a good idea, can then even run voip clients on your mobile so make home phone calls when away from home e.g. answer phone as if at home when on holiday

I realised the benefits of that many years ago when VOIP was not wonderful. I could sit in LA, Cape Town, Singapore or Perth and make/receive calls as if I was in London. A fraction of extra delay and rough voice quality at time but totally usable - the benefit being that it saved an absolute fortune when compared to mobile roaming. Had I wanted to, other UK numbers including mobile could be diverted to the VOIP line too.

thomaswarne01 - all you will need to do, is pay a porting fee, then possibly a low monthly fee (£2), add a VOIP adapter such as Gigaset N300A IP or S850GO for example, and there you have it.

Have seen a couple of examples of only the FVA being used (customer didn�t want BB)

Wether this means you could keep voice with BT and migrate the FTTP to another provider ... I dunno, but I seriously doubt it. I�d go the VOIP route being suggested. I think this might cause least grief.

As an aside .... if you�ve a four port ONTE (I think you�ve had service a while, so a likely yes) on the day of migration, if the broadband for Zen doesn�t come live, try connecting the Zen equipment to port 2 of the ONTE rather than the current port 1 ....

Have seen changes of service result in service being activated to the second port before.

Thanks for all the replies so far, upon looking at comments I have done a little research upon knowing a tiny bit about VOIP
so i take it if i get a Cisco SPA112 to convert a voip line to analouge just like the Openreach ONTE does currently i can use any ISP just for internet on FTTP and use a VOIP provider to retain my landline number.
which provider is best and would this kind of setup work?
ONTE - Router - Cisco SPA112 - Analogue phones - (VOIP Line)
instead of current
ONTE - Analogue Phones (BT FVA)

Why would you want analogue phones on there?

A DECT solution can be a lot neater. As mentioned already the Gigaset equipment would work well.

To keep the phones around the house working the same, i don't want my phones to be any different so basically keeping everything as it is, just changing who provides the line and via VOIP instead of BT

The SPA112 will do what you want but it does use quite complicated dial plans!