Hi there @BILLYG23, thanks for reaching out to us and a warm welcome to the Virgin Media forums.
Thank you for the query regarding the phone adapter.
As @goslow has mentioned, it is an adapter that we supply in-order for you to use the VOIP services.
May I ask if you have been given one or would like to request one?
Let us know and we'll get this sorted out 🙂
New around here? Check out the do's and don'ts, in our Community FAQs