Our company wants to implement OCS 2007 R2, initially for presence awareness, but may think about using voice features in the future. Right now we would have around 75 users on the system, all from PC's that are a part of the domain. Some would be connecting directly to our network in our office, some would be connecting from a remote location (that isn't on our network).
My question is, do I absolutely need an Edge server? We have no perimeter network at the moment. We just have a Juniper firewall/router that protects us from the public internet and we open ports as necessary. I don't have a problem exposing our internal OCS server (Standard Edition) to the internet....if that is possible.