User manual
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5.5 Sweeping for ISDN devices
When scanned, most ISDN modems will respond to incoming analog calls. Some ISDN modems, such as
the Motorola Bitsurfer, will respond only to ISDN data or ISDN data-over-voice calls. To find such
modems, scan first with an ISDN modem, and then follow up by scanning with a normal modem.
• For scanning purposes, we are not aware of any ISDN modems that support Single Call Detect.
To both take advantage of SCD mode and find ISDN devices, it is best to scan a profile twice:
o Once in SCD mode with a Zoltrix or other SCD-capable modem, and then
o Scan a second time for “Modems only” with an ISDN modem (we recommend the U.S.
Robotics Courier Imodem.
If you choose to you can do a scan by calling first in data mode (Find Modems Only) and then in fax
mode (Find Fax Machines Only) with a hybrid analog/ISDN modem. However, please note this will take
twice as many calls as scanning the profile twice with the two different modems. It will also
inconvenience the users more, because of the lack of rapid voice ID and because a human will hear loud
beeping if they answer the phone.
5.6 Monitoring Your Sweep in Real Time
The Status tab shows the real-time status of a sweep in progress (estimated and actual), as well as the
current status of each modem as it progresses through a sweep. The real-time data displayed on the Status
tab are:
• Estimate of the time required to complete the current sweep
• The rate at which PhoneSweep is progressing through the profile
• How much progress PhoneSweep has made
• What each of your modems is currently doing