My company is looking into using AT&T's IP Flex circuit to replace our existing PRIs in our S8700. How does that work for programming the trunk groups. IP Flex has 30 channels, we have 2 PRIs with 23 channels each. There are 2 cables for the IP Flex coming out of the router. They would go to my 2 DS1 cards? Do I leave I leave one trunk group alone, and remove 16 trunks from my 2nd one, leaving me with 7? I am confused on how that works. I would appreciate any help that anyone could provide. Thank you