User`s manual

U.S. Robotics I-modem Command Reference
Working with Memory • Page 4-6
Important Resetting the I-modem or powering it off and then on will not change
these ÒDIP switchÓ settings! The only way to change them is to issue
the commands manually. Save a setting change by following a com-
mand with &W. For example, AT&D1&W<Enter>
Displaying Saved Information
S-register Value (Sr?)
This command allows you to view the contents of a particular S-re
gister, as in the follow-
ing example that requests the contents of Register S0:
ATS0? <Enter>
Phone Number (&ZN?)
When you send this command, the I-modem returns the phone number stored in NVRAM
at position n, as in the following example that includes a sample response:
AT&Z3? <Enter>
5551234