3.3 Basic AT Commands
In the following listings, all default settings are printed
in bold text.
Command | Function | |
A |
| Manually answer incoming call |
A/ |
| Repeat last command executed. Do not precede |
|
| A/ with AT or follow with ENTER |
AT |
| Appears at the beginning of every command |
|
| line |
B_ | B0 | CCITT mode |
| B1 | Bell mode |
D_ |
| 0 - 9, |
| P | pulse dialing |
| R | originate calls in answer mode |
| T | |
| W | wait for second dial tone |
| , | pause |
| @ | wait for five seconds of silence |
| ! | flash |
| ; | return to Command Mode after dialing |
DS=n |
| Dial one of the four telephone numbers (n=0- |
|
| 3) stored in the modem’s |
E_ | E0 | Commands are not echoed |
| E1 | Commands are echoed |
+++TIES Escape Characters - Switch from Data Mode to Command Mode
H_ | H0 | Force modem |
| H1 | Force modem |
I_ | I0 | Display |
| I1 | Factory ROM ID |
| I2 | Internal memory test |
| I3 | Device ID |
| I4 | Internal ID |
L_ | L0 | Low speaker volume |
| L1 | Low speaker volume |
| L2 | Medium speaker volume |
| L3 | High speaker volume |
M_ | M0 | Internal speaker off |
| M1 | Internal speaker on until carrier detected |
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