I am investigating networking 3 fxII together. Currently there are already 3 tied together. So eventually would like all 6 tied together for a continuous network. My question is Is a full t-1 needed or is there a way to break out channels from an existing T-1 at the 3 new locations?? The 3 networked switches are 1 DXP and 2 FXII. Trying not to install 3 new T-1's