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Marvel AT Tester V1.1: Simple tool to send AT Commands To Devices Via Comport

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AT commands are used to control MODEMs. AT is short for Attention. These commands come from Hayes Commands which were used by Hayes smart modems. Hayes commands began with AT to indicate MODEM attention. Dial-up and wireless modems (devices that involve machine-to-machine communication) need AT commands to interact with a computer. These include the Hayes command set as a subset, as well as other AT commands.
AT commands with a GSM/GPRS MODEM or mobile phone can be used to access the following information and services:
1. Information and configuration relating to the mobile device or MODEM and SIM card.
2. SMS service.
3. MMS service.
4. Fax services.
5. Data and voice link on mobile network.
The commands of the Hayes subset are called basic commands and the commands specific to a GSM network are called extended AT commands.

The tool allows you to use all the following commands using this tool. is a very small utility for all Windows users. im shared all the commands below, you can easily understand.

What can AT commands be used for?

AT commands allow you to control everything around the modem, device and SIM card:

  • Wake up the device or put it into sleep mode
  • Configuring power saving modes
  • Search and register on available radio networks and types
  • Receive updates on network status changes
  • Read/send SMS and USSD
  • Send data (TCP/IP)
  • Get hardware and SIM card information (IMEI, IMSI, etc.)
  • and much more

To begin, we will talk about the syntax or types of AT commands that can be sent to the modem.

List of AT commands:
AT commands for GSM module and mobile phone are listed below. Some of these commands may not be supported by all GSsM-modules available. Some commands may also not be supported by some mobile handsets.
Test :
Ordered
The description
To
Verification of communication between the module and the computer.
Call control:
Ordered
The description
To
Respond to command
AT
Compose the order
ATH
hang up the call
ATL
Monitor speaker volume
AT M
Monitor speaker mode
ATO
go online
ATP
Set default pulse dialing
To
Set Default Tone Dial
AT+CSTA
Select the type of address
AT+CRC
Cell Result Codes
Data Card Control:
Ordered
The description
WE HAVE HAD
Identification
TTY
Select an S register
RETURN
Recall saved profile
A&F
Restore factory settings
MTB
Show active configuration
AT&W
Store settings in a given profile
A&Y
Select Set as power on option
AT+CLCK
Facility lock command
AT+COLP
Understanding Connected Line Identification
AT+GCAP
Request the full list of capacities
AT+GMI
Request Manufacturer ID
AT+GMM
Request model identification
AT+GMR
Request revision identification
AT+GSN
Request Product Serial Number Identification (IMEI)
Phone control:
Ordered
The description
AT+CBC
Battery charge
AT+CGMI
Request Manufacturer ID
AT+CGMM
Request model identification
AT+CGMR
Request revision identification
AT+CGSN
Request product serial number identification
AT+CMEE
Report a Mobile Equipment Error
AT+CPAS
Phone activity status
AT+CPBF
Search phone book entries
AT+CPBR
Read phone book entry
AT+CPBS
Select phone book memory storage
AT+CPBW
Write an entry in the phone book
AT+CSCS
Select TE character set
AT+CSQ
Signal quality
Computer interface:
Ordered
The description
ATE
Command echo
ATQ
Deleting result code
MTB
Set response format
ATX
Response range selection
A&C
Define DCD usage
A&D
Define the use of the DTR
A&K
Select flow control
AT&Q
Set communication mode option
A&S
Set DSR option
AT+ICF
DTE-DCE character framing
AT+IFC
DTE-DCE Local flow control
TA+DPI
Fixed DTE rate
Service :
Ordered
The description
AT+CLIP
Introducing Caller Line Identification
AT+RC
Checking service reports
AT+DR
Data compression reports
AT+ILRR
DTE-DCE Local Rate Report
Network communication setting:
Ordered
The description
MTB
Standard communications option
AT+CBST
Select Support Service Type
AT+CEER
Extended Error Reporting
AT+CRLP
Radio link protocol
AT+DS
Data compression
Various :
Ordered
The description
A/
Run the command line again
TO?
Help with orders
AT*C
Start the SMS interpreter
AT*T
Enter SMS block mode protocol
AT*V
Enable V.25bis mode
AU*NOKIATEST
Trial order
AT+CESP
Enter SMS block mode protocol
SMS text mode:
Ordered
The description
AT+CSMS
Select mail service
AT+CPMS
Preferred message storage
AT+CMGF
Message format
AT+CSCA
Service center address
AT+CSMP
Define text mode settings
AT+CSDH
Show text mode settings
AT+CSCB
Select cell broadcast message types
AT+CSAS
Save settings
AT+CRES
Restore Settings
AT+CNMI
New message indications to TE
AT+CMGL
List messages
AT+CMGR
read post
AT+CMGS
Send the message
AT+CMSS
Send message from storage
AT+CMGW
Write a message in memory
AT+CMGD
Delete Message
SMS PDU mode:
Ordered
The description
AT+CMGL
List of messages
AT+CMGR
read post
AT+CMGS
Send the message
AT+CMGW
Write a message in memory

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