Gsm modem "at" commandes

[RAMZAN TARIQ]

any one have idea about "GSM AT COMMANDES"?i want to interface my controller with mobile by using "AT" commandes hows used no idea?
plz help me
what is :"AT " commandes and hows used?

 

[qwertyuiop415263]

see these two links.

SMS Tutorial: Introduction to AT Commands, Basic Commands and Extended Commands
AT Commands

 

[kak111]

AT Commands for GSM

AT Commands
GSM Reference Guide
Wireless Modem Family
http://www.arcelect.com/GSM Developer Guide - GSM AT Commands - Rev A.pdf

AT Command Set
(GSM 07.07, GSM 07.05,
Siemens specific commands)
http://amber.feld.cvut.cz/user/pokorny/bpdp/S35_ATC.PDF

AT Command Set For Nokia GSM Products
http://www.google.fi/url?sa=t&rct=j...sg=AFQjCNEG2tH4anDO3XqTpkHojuv-fqnR2A&cad=rja

**broken link removed**

AT COMMANDS
INTERFACE GUIDE
atVersion: 004
Date: April, 05th 2002
Reference: WM_SW_OAT_IFS_001
http://www.coster.info/costerit/teleges/doc/gsm822w.pdf