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&Bn – DTR Dial Option
This command enables the modem to dial a number stored with &Zn=number when the DTR signal
goes from inactive to active signal level.
&B0
No automatic call with DTR. (Default)
&B1
Call on DTR.
Please also refer to AT&Z, AT&D
\Bn – Transmit Break to Remote
The command controls the length of the break-signal, in a non-error correction mode. The length is
depending of the value n and is in multiples of 100 mS. During an error corrected link break will only
be transmitted to the remote modem through the active error correction protocol, giving no indication
of the length. The command works together with AT\K.
\Bn Break length in 100 mS units. The value can be between 1 and 9. (Default 3)
*B – Display blacklisted phone numbers
This command requests the modem to return a list with blacklisted phone numbers to the terminal
equipment when asked. The format of the response is shown by the example below.
Permanently forbidden phone numbers as defined by country requirements will not appear on this list.
If no blacklisted numbers exist, the modem responds with the result code OK.
Example:
NO. – PHONE NUMBER -
1;
2;
3;
4;
5;
OK
Cn – Carrier control
This command is included for compatibility only, and has no effect other than returning a result code.
&Cn – DCD Option
The modem will handle the DCD signal depending on n. The parameter value is written to S21 bit 5.
On leased lines DCD always follows the state of the carrier.
DCD remains ON at all times. (Default.)
&C0
&C1
DCD follows the state of the carrier.
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