We have 2 ISDN terminals in different parts of a building, that need to call each other. When either device originates the call, the 2 devices will communicate/synchronize on the "D" channels. The problem is the B channels try to synchronize at different data rates. One at 56khz, the other at 64khz.
Anyone have any experience with BRI stations?

Through IMAT can you set the speed or set call by call settings?

The calls are going from one BRI station, to another. The IMAT is only for PRI, isn't it?