This is follow-on question. I was very impressed with the experts responding to the last issue...
WIth diagram enclosed (hope you can read it), I would like file sharing/collaboration between any given pair of offices to be built "on-demand". Then when that session is complete, automatic tear-down of that file sharing instance. (I'm paranoid and don't like my data sitting in the cloud too long even if they guarantee protection.) For example, Office A wants to connect and share files and colloborate and all that with Office C. Either office can initiate. Then the "cloud" provides an encrypted link from each office to a virtual file server. Once the session is complete, which can be minutes or hours or days or weeks, that file server goes away as well as the office vpn connections to it. Process starts all over again once another pair of offices (or more than two) want to collaborate.
Who can do that?? And how do I get that service?