72
SoundExpression
Command
Description
Select pulse dial make/break ratio
AT&P0
Selects a make/break ratio of 39/61 at 10pps. US and Canada. (default)
AT&P1
Selects a make/break ratio of 33/67 at 10pps. UK and Hong Kong.
Data Set Ready (DSR) signal
AT&S0
Causes DSR signal to be active at all times. (default)
AT&S1
Causes DSR signal to be active according to the ITU-T specification.
Test and diagnostics
AT&T0
Terminates any test in progress.
AT&T1
Executes the local analog loopback test.
AT&T3
Executes the local digital loopback test.
AT&T4
Enables the modem to accept a request from a remote modem for a
digital loopback test. (default)
AT&T5
Instructs the modem to deny a request from a remote modem for a digital
loopback test.
AT&T6
Executes the remote digital loopback test.
AT&T7
Executes the remote digital loopback test with a self test.
AT&T8
Executes the remote analog loopback test with a self test.
Disable Trellis Coding
AT&U0
Enabled (Trellis modulation with QAM modulation as a fallback.)
(DEFAULT)
AT&U1
Disabled (QAM modulation only).
Содержание SoundExpression 14.4VSP
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