See reply here
VM should be modifying your home phone wiring (rather than moving the router) which should allow you to keep all the existing equipment where it is. If, however, moving the router suits you, by having the router and phone in the same place, that should work too.
If, however, the router is moved to a new location, that may change how your wireless signal from the router propagates throughout your home and might change wireless coverage in different areas of your property.
Welcome to the community,
Thank you for getting in touch, sorry to hear that your current set up is not suitable for the home phone switch over. We can certainly get the relocation sorted for you. Please join me on private message so I can locate your account and pass account security. You can see your private messages at the top of the page, in the envelope icon.