At my main office I have a single CUCM 7.1.5 server and Unity Connection 9.1.2 server. My H.323 Voice gateway router is a Cisco 2821 Router, with all phone lines coming in on a T1 (PRI).
Here's my scenario. We are going to open a second office in another state, employees here will basically be our 2nd shift, but I'm not sure how to go about routing calls to them. For example if someone calls our main office at night, I want the call to be answered by the second shift employees who are staffed in another office in another state.
I thought about just registering some IP phone over a VPN connection back to our main office, but the are only going to have one internet circuit to start, so I don't want IP Phones to go down if one of the offices lose internet. So i don't think that is a solution.
So i'm thinking about dropping a CME router out there, but I'm unsure how I would route calls from my main office to the second office. See all our customers call 555-555-5555 at our main office, and our auto attendant (unity Connection) picks up, and customers go through the options to talk to who they need to, so during 2nd shift how would I route the calls to be answered at the second office?
Any Advice or thoughts?