User`s guide

Basic AT Commands Appendix D - Fax/Modem Information
154
I1 Factory ROM checksum test
I2 Internal memory test
I3 Firmware ID
I4 Reserved ID
L_ L0 Low speaker volume
L1 Low speaker volume
L2 Medium speaker volume
L3 Hi
g
h speaker volume
M_ M0 Internal speaker off
M1 Internal speaker on until carrier detected
M2 Internal speaker always on
M3 Internal speaker on until carrier detected and off while
dialin
g
N_ N0 Disable Autoscan mode
N1 Enable Autoscan mode
O_ O0 Return to Data Mode
O1 Return to Data Mode and initiate an equalizer
P Set Pulse dial as default. Note: Pulse dialin
g
is not
supported for UK, Netherlands, Sweden, Norway,
Denmark, Finland, Switzerland, and Germany.
Q_ Q0 Modem sends responses
Q1 Modem does not send responses
Sr? Read and display alue in re
g
ister r.
Sr=n Set re
g
ister r to alue n (n = 0-255).
T Set Tone Dial as default
V_ V0 Numeric responses
V1 Word responses
W_ W0 Report DTE speed only
W1 Report line speed, error correction protocol, and DTE
speed.
W2 Report DCE speed
X_ X0 Hayes Smartmodem 300 compatible responses/blind
dialin
g
X1 Same as X0 plus all CONNECT responses/blind dialin
g
Prefix Suffix Function
TABLE 15. Basic AT Commands