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Modules
Table 27. Test Modes
Command
Test Mode
&T0
End/Abort test
&T1
Initiate local analog loopback test
&T3
Initiate local digital loopback test
&T4
Permit remote digital loopback
&T5
Prohibit remote digital loopback
&T6
Initiate remote digital loopback
&T7
Initiate remote digital loopback with self-test and error detector
&T8
Initiate local analog loopback with self-test and error detector
The factory-set modem configuration is:
E1 Q0 V1 X4 Y0 &C0 &D0 &P0 &Q0 &R0 &S0 &Y0
S00:000
&Z0=
&Z1=
&Z2=
&Z3=
Self-Test
The phone modem module does not implement a self-test.
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