Multi-Tech Systems MT3410ZLX-T/2 - Manual (Page 64)

MultiMobile Owner’s Manual
64
AT& (Ampersand) Commands
Command Options Function & Description
&Bn Auto-retrain
&B0 Hang up on a poor received signal
&B1 * Retrain on a poor received signal.
Hang up if condition persists longer
than the threshold set in S7 register
&B2 Don’t hang up; do not retrain (tolerate
any line)
&Cn Data carrier detect option
&C0 State of carrier from remote modem is
ignored. RLSD (Receive Line Signal
Detect) circuit is always on
&C1 * State of carrier from remote modem is
tracked. RLSD circuit reflects the state
of carrier
&Dn Data Terminal Ready (DTR) option.
&D0 DTR ignored
&D1 Go to command mode on on-to-off
DTR transition
&D2 * Hang up and go to command mode on
on-to-off DTR transition. Auto-answer
is disabled if DTR is low
&D3 Hang up and reset from user profile 0
on on-to-off DTR transition
&F Recall factory default setting as active
configuration
&Gn Guard tone option
&G0 * No guard tone
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&Jn Dummy command for AutoSync
compatibility
&J0 Send OK to DTE
* Factory default setting