Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 69 23.06.2010
<mode> 0 automatic mode; <oper> field is ignored
1 Manual (<oper> field shall be present, and <AcT>
optionally)
4 manual/automatic (<oper> field shall be present); if
manual selection fails, automatic mode (<mode>=0)
is entered
<format> 0 long format alphanumeric <oper>
1 short format alphanumeric <oper>
2 numeric <oper>; GSM Location Area Identification
number
Reference
GSM 07.07 [14]
Note
3.2.23 AT+CPAS Phone Activity Status
AT+CPAS Phone Activity Status
Response
+CPAS: (list of supported <pas>s)
OK
Test Command
AT+CPAS=?
Parameter
see Execution Command
Response
TA returns the activity status of ME.
+CPAS: <pas>
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution
Command
AT+CPAS
Parameter
<pas> 0 Ready (MT allows commands from TA/TE)
2
Unknown (MT is not guaranteed to respond to
instructions)
3 Ringing (MT is ready for commands from TA/TE,
but the ringer is active)
4 Call in progress (MT is ready for commands from
TA/TE, but a call is in progress)
Reference
GSM 07.07 [13]
Note
3.2.24 AT+CPBF Find Phonebook Entries
AT+CPBF Find Phonebook Entries