Specifications
SIM900 AT Commands Set
SIM900_ATC_V1.01 25 23.06.2010
Parameter
<n> 0 Disconnect ALL calls on THE channel the command is
Requested. All active or waiting calls, CS data calls, GPRS
call of the channel will be disconnected
1 Disconnect all calls on ALL connected channels. All active
or waiting calls, CSD calls, GPRS call will be
disconnected.(clean up of all calls of the ME).
2 Disconnect all connected CS data call only on the channel
the command is requested (speech calls (active or waiting)
or GPRS calls are not disconnected).
3 Disconnect all connected GPRS calls only on the channel
the command is requested (speech calls (active or waiting)
or CS data calls are not disconnected
4 Disconnect all CS calls (either speech or data) but does not
disconnect waiting call (either speech or data) on the
channel the command is requested.
5 Disconnect waiting call (either speech or data) but does not
disconnect other active calls (either CS speech, CS data or
GPRS) on the channel the command is requested.
(rejection of incoming call)
Reference
V.25ter
Note
2.2.9 ATI Display Product Identification Information
ATI Display Product Identification Information
Execution
Command
ATI
Response
TA issues product information text
Example:
SIM900 R11.0
OK
Reference
V.25ter
Note
2.2.10 ATL Monitor speaker loudness
ATL Monitor speaker loudness
Execution
Command
Response
OK