this may not be new news for some of you, but if you don't have or need a home phone you won't be able to change your service without getting one.
I have had Verizon DSL Internet at my home for over 4 years now. In all that time, I have not had a home phone and have never needed one. I do all my phone business (what little there is) through wireless communications which is much more valuable as a modern communications solution. A home phone is a completely unecessary expense for me.
Recently, I realized I could upgrade the speed of my DSL. Yet, when I attempted to upgrade the service, I was told I would need to "Bundle" my internet with home phone service. Whereas only upgrading my internet would be a small fee more, Verizon wants me to pay for a service I don't want or even need for a greater amount.
So, be forewarned, bundling is not customer friendly. It requires more services than you may need and at a greater expense.