I've had Indigo in my home for years and just recently purchased a building about a mile away. Both sites have GigE Fiber. I'm trying to decide how I want to integrate the two locations. My thoughts are:
1) Create a PtP VPN Tunnel between the two locations. I'm guessing I will have very little latency since they are so close electronically (and physically) and if the internet was down at either location, the other options wouldn't work either.
2) Purchase another license and server and use e-mail as a communications method between the two systems
3). Same as #2, but use iMessage plugin
4) Something I'm not thinking of right now?