multiple modem setup on NTWS4.0

I have been trying to configure four internal modems(same brand & 56K)on NT workstation4.0 with out success.
I receive lot of error logs in the event viewer.This requirement is to receive faxes from four seperate telephone lines.
(I AM NOT MAKING MULTILINK TO INCRASE THE BAND WIDTH).
I followed all recommended steps to configure, but only the first modem is getting installed successfully.

If anybody knows this ,kindly reply please.