11
Industrial Control Modem GSM
TECHNICAL: 0118 931 2233
Test Commands
ATDnnnn
This causes the DCE to dial a number (nnnnnn)
ATH
Hang up
ATA
Answer an incoming call
Informative Commands
ATI
Used to query DCE for its identifiers, such as frequency
AT+COPS?
Will inform you as to which GSM Network you are connected. See page 118
of the AT Commands manual for a list.
AT+CSQ
Will tell you the signal strength. 17 roughly equates to 4 bars on a hand
phone, 10 to about 2 bars, which should be sufficient for data transfer.
AT&V0
Will display the DCE current configuration
AT&F
This command is used to restore the factory settings from EEPROM, this will
take you back to square one, regardless of any changes you have made.
These settings are listed in appendix 16.10. of the AT Commands Manual
