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Hello Everyone
I just bought a GSM Modem that uses a SIM CARD to do Sms.
The controlling will be done by RS232(Com port 1).
Problem is that I do not know how to control the AT commands.
Is there a list which I can download or get from?
Thanks and best regards
what do u mean by AT commands? do you have already a third party software for that? or you have your own??
Moved to General Developer
AT commands are the commands phones (and modems) that was created by some guy so we can tell them what to do. I used to have a list. But I don't know where it went to...Quote:
Originally Posted by noielen
AT=Attention
H=hangup
so...
ATH = hangup the modem
E0 and E1 turn on and off the echo - ATE0 and ATE1
ATD - dial (D=dial)
ATDT - dial - but with T (touchtone)
Google for HAYES COMPATIBLE MODEM COMMANDS - you will get lots of links.
Note that they can be modem specific - so they do not follow the HAYES standard always.
Here's a partial list:
Quote:
GENERAL AT COMMANDS
AT - Gets the modem's attention; this prefix must be included in all commands unless otherwise noted
+++ - Switches the modem from data to command state; this command is not proceeded by AT.
A - Instructs the modem to attempt to answer a call.
A/ - Re-executes the last modem executed command; this is not proceeded by AT.
Bn - sets the operation standard 0=CCITT, 1=Bell
Cn - Turns the modem transmit carrier signal on and off 0=turn off the modem transmit carrier signal during normal operation; 1=Turn on modem transmit carrier signal during normal operation.
Dn - Dials the number, n; T - Touch-Tone dialing; P - Pulse dialing; , - pause 2 seconds; @ - Wait for 5 seconds of silence; R - Dial an originate-only modem; S=n - Dial one of four stored telephone numbers; : - Return to command mode after dialing; ! - Go on hook for 1/2 second.
En - Turns the command echo feature on/off so that your commands either are displayed or are not displayed on the screen 0=off, 1=on.
Hn - Causes the modem to hang up or pick up when in data mode 0=hang up, 1=pick up.
In - Identifies the modem code and the status of the ROM 0=display 3-digit product ID code (preset to 248); 1=display checksum; 2=display checksum and display OK or ERROR.
Ln Sets the internal speaker volume 0,1=lowest, 2=medium, 3=highest.
Mn - Determines when the speaker is on and off; 0=always off; 1=on during call and off when receiving data carrier; 2=always on; 3=off when receiving carrier and during dialing bu not when answering.
On Switches the modem from the command state to the on-line state; 0=returns the modem to the on-line state when a connection is still open, 1=returns the modem to the on-line state and initiates a V.22 bis retrain sequence.
Qn - Displays or suppresses (quiets) result codes 0=displays codes (default), 1=suppresses codes
Sr? - Read and display register r
Sr=n - Set register r to value n
Vn - Displays result codes in short form (numbers) or long form (test); 0=Send numeric responses; 1=send word responses.
Xn - Determines which result codes will be displayed following modem operations; 0=Basic response set, blind dialing; 1=Extended response set, blind dialing; 2=Extended response set, dial tone detection; 3=Extended response set, blind dialing, and busy signal detection; 4=Extended response set, dial tone, and busy signal detection.
Yn - Enables or disables the long-space disconnect 0=disable, 1=enable.
Zn - Resets the modem and recalls a user profile; 0=recall user profile 0; 1=recall user profile