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C-8 User’s Manual
AT Commands
Result Codes:
OK n=0,3,4
ERROR Otherwise
&Pn Select Pulse Dial Make/Break Ratio (WW)
&P0 Selects 39% - 61% make/break ratio at 10 pulses per
second.
&P1 Selects 33% - 67% make/break ratio at 10 pulses per
second.
&P2 Selects 33% - 67% make/break ratio at 20 pulses per
second.
Result Codes:
OK n=0,1,2
ERROR Otherwise
&Tn Self-test commands
These tests can help to isolate problems if you experience periodic data
loss or random errors.
&T0 Abort. Stops any test in progress.
&T1 Local analog loop. This test verifies modem operation, as
well as the connection between the modem and computer.
Any data entered at the local DTE is modulated, then
demodulated, and returned to the local DTE. To work
properly, the modem must be off-line.
Result Codes:
OK n=0
CONNECT n=1
ERROR Otherwise
&V Display Current Configuration
This command displays the current configuration of the modem. If
nonvolatile memory is supported the stored profiles are displayed as well.
&V View profiles.
&W Store current configuration
Saves the current (active) configuration (profile), including S-Registers.
The current configuration comprises a list of storable parameters illustrated
in the &V command. These settings are restored to the active configuration
upon receiving a Zn command or at power up. Refer to the &V command.
&W Stores the current configuration.