Chapter 5 - Troubleshooting
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.
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