Zoom 3035 User Manual
Page 22
_________________________________________________________
22
mands). Consult your voice software’s documentation to deter-
mine whether it supports TAPI and/or IS-101. Also, be sure you
are using the latest 32-bit version of the software.
Another possible problem is that your computer does not have
the latest version of Unimodem V, a set of drivers required for
TAPI applications. The software that installs your modem auto-
matically installs the latest version of Unimodem V if it is needed.
You may have subsequently installed a communications pack-
age that automatically installs an older version of Unimodem V. If
that is the case, you can reinstall the newer version of Unimodem
V from the CD: Simply insert the CD and rerun the PCI installa-
tion.
• The modem drivers that were installed with your PCI modem
might have been updated. For driver updates, please go to
.
• Most telephony voice software has features that require your
computer to have a sound card and speakers, plus a micro-
phone for recording.
Problem
The modem can connect to some modems, but not to others.
Solution
A remote modem does not respond because of the extended
negotiation process by which modems determine the best com-
mon connection between them. If this is the case, you may have
to disable part or all of the negotiation process. In the following
table, “protocol” means error correction and data compression.
To force different communication
speeds
Type these AT commands
and press Enter
Negotiate speed and protocol
(default setting)
AT &F
To force protocol
AT \N3
Dual mode (V.90 or V.92)—56000
bps
AT+MS=V92,1
V92 only (disable V.90)—56000 bps
AT+MS=V92,0
V.90 only (disable V.92)—56000 bps
AT+MS=V90,0