Problem: My Rosewill RC-403 PCI Voice/Data/Fax modem isn't working fully with
a number of TAPI based answering machine programs (e.g. IVM Answering
Attendant, Impulse Technology's CallStation). These programs can pick up and
record calls but they cannot play a greeting message over the phone line.
All a caller hears is silence while the greeting is playing. Craig Duncan at
Impulse Technology has indicated to me in a personal communication (as well
as on his web site http://www.imptec.com/modems.htm - see Windows Vista
section) that the problem is caused by a "bug" in Vista's Unimodem Transform
Module that affects all Conexant based voice modems. Since most modems on
the market today are based on the Conexant chip set, and since most answering
machine software on the market is TAPI based, the implication is that many
people are affected by this. In other words, it's very likely that if
someone wants to use their Vista machine to work as an answering machine,
they'll run into this.

Questions: Is Craig Duncan right about the Unimodem driver and if so, does
Microsoft intend to fix this soon? If not, can someone recommend a
Voice/Data/Fax modem that will support full TAPI answering machine
functionality running on Vista?

Note: Here's a link to another reference to this problem in the Windows
Community Forums:
http://windowshelp.microsoft.com/com...7-5f02dd66a0fd