Popular guidelines

What is the AT command used for?

author 0

What is the AT command used for?

at command is a command-line utility that is used to schedule a command to be executed at a particular time in the future. Jobs created with at command are executed only once. The at command can be used to execute any program or mail at any time in the future.

What is 3GPP AT commands mean?

AT commands are software interface for wireless modules. AT commands are defined as part of 3GPP standard under 3GPP TS 27.007. That implies that all the wireless modules that operate on cellular networks are required to support AT commands.

What are the different AT commands used in GSM code?

AT Commands, GSM AT command set

Command Description
AT+CRES Restore settings
AT+CNMI New message indications to TE
AT+CMGL List messages
AT+CMGR Read message

What is the purpose of the AT command ATM0?

Command Syntax Function
M0 ATM0 The modem’s speaker is always off
M1 ATM1 The modem’s speaker is on until a connection is made
M2 ATM2 The modem’s speaker is always on
M3 ATM3 The modem’s speaker is off during dialing, and on after dialing until the connection is made

What is the GSM module?

A GSM modem or GSM module is a hardware device that uses GSM mobile telephone technology to provide a data link to a remote network. From the view of the mobile phone network, they are essentially identical to an ordinary mobile phone, including the need for a SIM to identify themselves to the network.

How many types of command are there?

These commands are classified into four types namely Test, Read, Set and Execution. The test AT command is mainly used for checking the command’s compatibility using a modem.

What is at in AT commands stands for?

ATtention
AT commands are instructions used to control a modem. AT is the abbreviation of ATtention. Every command line starts with “AT” or “at”. That’s why modem commands are called AT commands.

Where are AT commands used?

The AT commands can be used with GSM module and GPRS MODEMs or phone to access these services and information:

  • SMS.
  • MMS.
  • Fax.
  • Voice link and other data over mobile network.
  • Information and configuration concerning the mobile devices or MODEM and SIM card.

author

Back to Top