User's Manual

Chapter 5 - Troubleshooting
Multi-Tech Systems, Inc. MT9234ZBA-USB User Guide (S000419D) 27
The Modem Doesn’t Work with Caller ID
● Caller ID information is transmitted between the first and second rings, so if autoanswer is turned off (
S0=0
)
or if the modem is set to answer after only one ring (
S0=1
), the modem will not receive Caller ID
information. Check your initialization string, and if necessary change it to set the modem to answer after
the second ring (
S0=2
).
● Make sure that you have Caller ID service from your telephone company.
Fax and Data Software Can’t Run at the Same Time
●
Communications devices can be accessed by only one application at a time. In Windows 2003 and higher,
you can have data and fax communication applications open at the same time, but they cannot use the
same modem at the same time.