Using AT Commands to Test Modem Circuits
In addition to the power up tests the modem performs, you can also use
AT commands to check the modem functions. This section does the following:
1. Describes the tests that can be performed
2. Provides a procedure for each test
3. Explains the results that can be expected.
Click on the following topics for more information about tests:
Available Tests
Performing a Test
Initiating a Test
Terminating a Test in Progress - &T0
Setting the Test Timer S18=
Tests with Analog Loopback
Tests with Digital Loopback
Testing the Tone Dialer - &T2
Testing the Cable
Testing the Internal Memory
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