Motorola D15, Integration And Application Developers Manual

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d15 Modem Integration and Application Developers Guide version draft 0.53 Page 62 of 181
4.8 Basic AT Commands
Table 12 lists the AT commands that form part of the basic command for the d15 modem. Commands
shown in bold are factory defaults.
The format of the command is AT<command>, for example ATE0 will turn off command echo.
To repeat command use the command A/ which will repeat the previous command. This is not prefixed with
AT.
Table 12: Basic AT Commands
Command Function
A Go off-hook and attempt to answer a call
Dn
Dial modifier. For voice call use ATDxxx; or AT*Dxxxx or ATD>102;
or ATD>”DAN” or ATDS=1; or ATDS=0 or
ATD>SM101;
E0 Turn off command echo
E1 Turn on command echo
H Initiate a hang-up sequence
I0 Report product code
I1 Report pre-computed checksum
I2 Report processor name
I3 Report firmware revision
I4 Report product name
I6 Report processor name
O Go on-line
Q0 Allow result codes to DTE
Q1 Inhibit result codes to DTE
Sn Select S-Register as default
Sn? Return the value of S-Register n
S0 Read/Set number of rings before Automatic answer
S2 Read/Set Escape code character
S3 Read/Set Carriage return code character
S4 Line feed code character
S5 Command line editing character
S7 Wait time for carrier
S24 Sleep mode
Sn for n equals to 14, 21,
22, 31, 36, 39, 40, 41 Bit map registers
S95 Bitmap register for extended result code
S96 Echo cancelling feature for audio devices by ATS96=1 . After sending this command,
the radio should restart to activate it
S97
Antenna diagnostic feature: ATS97? Will respond with 000 or 001. 000 means either
antenna not connected or HW not support this feature.
V0 Report short form (terse) result codes
V1 Report long form (verbose) result codes
W Report DTE in Error Correction (EC) mode