Specifications

SIM900 AT Command Manual
SIM900_AT Command Manual_V1.03 51 12/24/2010
Parameters
<number> String type (string should be included in quotation marks)
phone number of calling address in format specified by
<type>
<type> Type of address octet in integer format;
129 Unknown type (IDSN format number)
161 National number type (IDSN format)
145 International number type (ISDN format )
177 Network specific number (ISDN format)
<alpha> optional string type(string should be included in quotation
marks) alphanumeric representation of <number>
corresponding to the entry found in phone book.
Reference
GSM07.07
Note
3.2.7AT+CEER Extended Error Report
AT+CEER Extended Error Report
Response
+CEER: (list of supported <n>s)
OK
Test Command
AT+CEER=?
Parameter
See Write Command
Response
+CEER: <n>
OK
Read Command
AT+CEER?
Parameter
See Write Command
Response
OK
Write Command
AT+CEER=<n>
Parameter
<n> 0 The reason for last call release as text code
1 The reason for last call release as number code
Execution
Command
AT+CEER
Response
TA returns an extended report of the reason for the last call release.
+CEER: <report>
OK