Manual of Board ET-BASE GSM SIM900
11.6 How to check Serial Number(IMEI) of Module
AT+GSN<Ent>
012896001185450
OK
11.7 How to check SIM Network Code of facilitator
AT+COPS?<Ent>
+COPS: 0,0,"TH GSM"
OK
12. How to make, receive, and cancel a call
•
It uses the Command
ATD
to make a call; the format of command
is to follow by the destination number
•
It uses the Command
ATDL
to make a call; it uses the telephone
number that user has recently made a call.
•
It uses the Command
ATA
to receive an incoming telephone call.
When there is an incoming call, user can hear ringtone from
speaker (receiver) of handset; in this case, user can use the
Command “
ATA
” to receive a call and speak instantly through
Handset or microphone (transmitter) of home phone.
•
It uses the Command
ATH
to hang up a telephone or cancel a
call.
This is an example of making a call by VOICE, it has to end the
command by semicolon sign (;) and
Enter (0x0D);
for example, when it
makes a call to the telephone number 0894469xxx, it is
ATD0894469xxx;<Ent>
OK
If it makes a call but it does not answer the telephone or the
line is busy, the Module reports by the message “
BUSY
” as shown in
the example below;
ATD0894469xxx;<Ent>
OK
BUSY
ETT CO., LTD.
-
17
-
www.etteam.com
