RE: Achieving High Speed Remote Desktop experience for HP Z Class Computers

I'm new to the concept of Remote Desktop - but as I have a HP z640 and zBook, thought I should try this out.

HP's instructions say "The sender and receiver must be on the same network for a Remote Boost connection to be established between them."

Does this mean it only works within one location (ie. within my home-office network)? Can I not use it remotely through the internet?

Max