Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 240)

Call Control Commands
Extended Error Report +CEER
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WM_DEV_OAT_UGD_049 - 001 VOLUME 2 August 23, 2007
12.9 Extended Error Report +CEER
12.9.1 Description
This command gives the cause of call release when the last call set up (originating or
answering) failed.
12.9.2 Syntax
Action command
AT+CEER
+CEER: <report>
OK
Read command
None
Test command
None
12.9.3 Parameters and Defined Values
<report>:
call release cause (please refer to section "failure cause from
GSM 24.08 recommendation" in Appendix)
12.9.4 Parameter Storage
None.
12.9.5 Examples
Command Responses
ATD123456789;
Note: Outgoing voice call
NO CARRIER
Note: Call setup failure
AT+CEER
Note: Ask for release cause
+CEER: Error 41
OK
Note: "Temporary failure"