Help!! Here's the story: Ordered a DS3 to replace 20 T-1's. It is cheaper on the network side and everybody at the ld carrier said it will work exactly the same as T-1's. Now I am being told it will not and it is due to be installed in two days. The signaling I need is d4-AMI. They want to know if it will be either ss7 or PRI. Our equipment is too old for both. How do I make this work? I have heard about using a multiplexor or a mux? But how do I know if I am getting the right one and if it will work. My equipment is based off of the D240sc t-1 rev1 dialogic boards. I also use a 1980's phone system from possibly inter-tel with the Premier logo on it. Ultimately, I need to have 28 T-1's from the DS3? Any tricks? What equipment do I need? How should the carrier set up the DS3? Thank you in advance for all of your help!

-Jason