I have a customer that only requires 56/64K connectivity at branch locations for a MPLS network. We have previously quoted 1841 series routers with a CISCO 1 PORT4-WIRE,56/64 CARD, WIC-1DSU-56K4 card. I cannot find the same card for the new 19XX router. How do I get 56K connectivity in the new routers? We cannot terminate a T1 (DS1) and channelize.
