Using latest IVM software d/led from this site. Installed modem and drivers. Diags come back fine. Installed IVM and tested by callling our number. The modem rings three times, caller-id detects the number, but there is no OGM, and nothing is recorded. In the command window in the bottom-half of IVM, it says the file was discarded because it was too short.
I tested using the call simulator, and it creates a call alright, however, there is no wav file there. I checked the Sounds applet in control panel and the Unimodem Full Duplex Audio device driver is present as a device. The Zoom 3025c is the only modem in the system, and is fully voice capable.
I called Zoom and they ran the diags with me as well, and asked what error the software is producing. Of course, they said it should work fine and to contact Swiftech. 
Any ideas? Here are the system specs:
Dual P3 Motherboard with 1 cpu
256mb PC150 memory
Windows XP SP2 with latest security updates
IVM 2.41
Zoom 3025c Voice-Fax-Data PCI Modem (latest driver from Zoom site)
Intel 10/100+ Management Adapter
No sound card installed...is this an issue? It worked fine without one in the past.
Thanks in advance.
LA.