Virgins lines are now 21CV. They do not use the internet. They use a seperate IP tunnel back to the local headend telephone exchange where the calls then revert to the original PSTN infrastructure they have always used. So as you are not using true VoIP & a VoIP phone won't work. Any traditional phone or DECT handset will work with the new 21CV line.
The traditional exchanges will not be switched off until 2025, as this has to be synchronised with all other operators.
VM BB TV Landline. Vonage 2nd line. Freeview/Freesat HD, ASDA/Tesco PAYG Mobile. Customer since 1993
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks