1. Launch the executable (the same one that installed the Mumble client) on the machine you want the server on (in my case, my Windows NAS). You can also install it on the same machine as the Mumble client, but I prefer to keep them separate as to min/max resources.
2a. If you're installing the server on the same machine that already has the mumble client: select Next > Change > Install (See attachment #1)
OR2b. If you're installing the server on its own machine (like my NAS): select Next > Agree to EULA > Uncheck Mumble and check Murmur > Install (See attachment #2)
Once installs are complete...
3a. Client + server on the same machine: launch Mumble, click the {+} next to Public Internet (you won't use those), click "Add New" and enter your computer info.
For example:
Label: localhost
Address: 127.0.0.1
Port: 64738
Username: HTPC
OR3b. Server only: Launch Murmur. You'll only see a system tray icon populate. Right-click on it for the "Show Log" to show status.
Then go back to the client machine, launch Mumble, click the {+} next to Public Internet (you won't use those), click "Add New" and enter the computer info of your server system.
For example, mine is:
Label: NAS
Address: 192.168.1.100
Port: 64738
Username: HTPC
Repeat 3b on your Android, but change your Username to reflect that it's your phone.
4. Connect both clients. By default they'll both be in the root channel together. Go to Configure > Settings > Check "Advanced" box at the bottom, and configure VAC in the settings using the Skype instructions from the wiki (see my first post attachments for reference). For my config, I also upped the Audio Output Volume to 200% because Vox kept telling me "too low" when talking to the phone. I also did Configure > Minimal View, but that's just a personal preference.
You should now be able to talk to Vox through your Android.