This article is from the Programming VCOMM FAQ, by firstname.lastname@example.org (Taed Nelson) with numerous contributions by others.
[Contributed by Michael Grabelkovsky (email@example.com).]
Two things must be done properly before the "More Info..." option of Control
Panal's Modems actually calls the ATIx commands to get "More Info":
1. The port driver EscapeFunction() must support the GETCOMBASEIRQ option.
"More Info" fell down when the driver answered with IE_EXITINVALID. The
function may return 0, though.
2. The virtual modem (port driver) must support following AT commands and
answer OK on the string: "ATE0Q0V1". The last commands are not set up in the
Modem's INF file, but it's used by "More Info". After that Modem will be
asked ATI1, ATI2 ... ATI7 and in the end the FAX capabilities with