I have BT's Digital Voice service (VOIP), which I was forced to take out when i got a BT Business FTTP line activated recently. BT Business no longer offer voice over copper in FTTP ready properties where a copper line already exists.
Few issues i've noticed with BT's VOIP service:
1) Despite being issued a brand new number by BT themselves, its NOT recognized on the Wholesale checker - its now ~ 3 months since it was issued.
2) There's no way to port another VOIP number - even if it was originally issued by BT on their copper service - back to BT on their new platform.
3) Whilst you can use BT's VOIP handset with any third party router, BT do NOT give you the voip login credentials so that you can use your own VOIP hardware.
Its because of 2) and 3) that i'm still keeping (and using) my other VOIP line on yay.com.
