Industrial Control Modem GSM
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
TECHNICAL: 0118 931 2233 
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