ATDnn / nnn
where
nn
is the first and
nnn
the alternative
number.
This facility cannot be used within the modem's telephone
directory.
DN
Dial a Stored Number
This command is used to dial a number from the modem's telephone
directory.
DNn
where
n
selects location 0-20 in the directory.
The modem's configuration will be changed while dialling if the
location contained instructions to do so.
Section 6.1 describes how to store numbers in the directory.
/D
Carrier Threshold
This command is used to select a minimum carrier threshold level,
below which any signal received will be ignored.
/D0
Carrier threshold –43 dB to –48 dB. Default.
/D1
Carrier threshold –33 dB to –38 dB.
/D2
Carrier threshold –26 dB to –31 dB.
/D3
Carrier threshold –16 dB to –21 dB.
For PSTN applications the normal carrier signal level is –43 dBm.
For leased line applications the level varies according to the quality
of the line; selection of a carrier signal threshold should be made
accordingly. If reverting to PSTN, reset to –43 dBm.
When
&L0
is selected, this command is automatically set to
/D0
.
%D
Remote Down-Load
This command is used to send back the altered remote modem's
configuration to become its new active configuration. Issuing this
command in PSTN mode will cause any call to be dropped.
''D
Revert to Leased Line on DTR
This command is not to be used if
*L13
(2-wire autorestoral) is set.
''D0
Normal mode.
''D1
Restore to leased line operation when DTR is raised.
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