Porting Vonage Home VOIP number to Sky

[Arpen]

I have Vonage Home VOIP landline , I got it when moving from one side of town to another to keep a number that i've had for 20 years, I have tried calling Sky previously and no one seems to know or give a convincing answer about whether I can port this number to a Sky Landline I have without losing it.

I have been told by one person only way you can find out is by trying it, we will try to keep it which doesn't fill me with confidence.

Is it possible?

[Mark39]

So far as I know, it's not possible to port a telephone number to an already active Sky phone line.