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&Dn – DTR Option
This command uses the incoming signal DTR to do different things, depending on n.
The value is written to S21 bit 3 and 4.
&D0
DTR drop is interpreted according to the setting as follows: (Default)
If &Q0, &Q5 or &Q6 is set:
If &Q1 or &Q4 is set:
If &Q2 or &Q3 is set:
&D1
DTR drop is interpreted according to the setting as follows:
If &Q0, &Q1, &Q4, &Q5 or &Q6 is set:
If &Q2 or &Q3 is set:
&D2
DTR drop causes the modem to hang up. Auto-answer goes off.
&D3
DTR drop is interpreted according to the setting as follows:
If &Q0, &Q1, &Q4, &Q5 or &Q6 is set:
If &Q2 or &Q3 is set:
Please also refer to AT&M, AT&Q, S21
*D – Display Delayed Numbers
This command displays a list with delayed phone numbers together with the delay associated with
each. The modem will return a list with delayed phone numbers according to definition in *B com-
mand.
The example below shows the format of the list (delay times are shown as hours:minutes:seconds).
If no numbers are delayed only the result code OK is issued.
Example:
NO. – PHONE NUMBER -DELAY
1;
2;
3;
4;
5;
OK
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DTR is ignored (assumed ON). Allows operation with DTE's which do not
provide DTR.
DTR drop causes the modem to hang up.
DTR drop causes the modem to hang up. Auto-answer goes off.
DTR drop causes the modem to return to command mode without
disconnecting.
DTR drop causes the modem to hang up. Auto-answer goes off.
DTR drop causes the modem to perform a restart as if the Z command
were received.
The parameter &Y determines which profile is loaded.
DTR drop causes the modem to hang up. Auto-answer goes off.
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