Here is a log of my last attempt:
08-08-2000 14:37:32.893 - File: D:\WINNT\System32\unimdm.tsp, Version 5.0.2175 - Retail
08-08-2000 14:37:32.893 - File: D:\WINNT\System32\unimdmat.dll, Version 5.0.2134 - Retail
08-08-2000 14:37:32.893 - File: D:\WINNT\System32\uniplat.dll, Version 5.0.2151 - Retail
08-08-2000 14:37:32.903 - File: D:\WINNT\System32\drivers\modem.sys, Version 5.0.2134 - Retail
08-08-2000 14:37:32.903 - File: D:\WINNT\System32\modemui.dll, Version 5.0.2146 - Retail
08-08-2000 14:37:32.903 - Modem type: Creative Modem Blaster Flash56 DI5601-1
08-08-2000 14:37:32.903 - Modem inf path: oem0.inf
08-08-2000 14:37:32.903 - Modem inf section: Install
08-08-2000 14:37:32.913 - 115200,8,N,1, ctsfl=1, rtsctl=2
08-08-2000 14:37:32.913 - Initializing modem.
08-08-2000 14:37:32.923 - Send: ATZ<cr>
08-08-2000 14:37:32.923 - Recv: ATZ<cr>
08-08-2000 14:37:32.923 - Command Echo
08-08-2000 14:37:33.033 - Recv: <cr><lf>OK<cr><lf>
08-08-2000 14:37:33.033 - Interpreted response: OK
08-08-2000 14:37:33.043 - Send: AT&FE1V1S0=0&C1&D2+MR=2;+DR=1;+ER=1W2<cr>
08-08-2000 14:37:33.073 - Recv: AT&FE1V1S0=0&C1&D2+MR=2;+DR=1;+ER=1W2<cr>
08-08-2000 14:37:33.073 - Command Echo
08-08-2000 14:37:33.073 - Recv: <cr><lf>ERROR<cr><lf>
08-08-2000 14:37:33.073 - Interpreted response: Error
08-08-2000 14:37:33.083 - Session Statistics:
08-08-2000 14:37:33.083 - Reads : 57 bytes
08-08-2000 14:37:33.083 - Writes: 42 bytes