Okay, so I think I'm finally understanding this whole concept of VOIP.

When using DialCentral, for the phone number I'm trying to call it first has to go through to my home phone since that's my forwarding number.

From there it redirects it back to my tablet, so once I answer it, DialCentral will then connect me to my original phone number I had dialed. Is this the correct method on how this whole process works?

By the way, thank you hornartist for such an excellent guide!