At+Ceer Extended Error Report - Multi-Tech MultiModem EDGE Reference Manual

3.4 AT+CEER Extended Error Report

AT+CEER returns an extended error report regarding the reason of the last
Description:
•
call release
• failure to set up a call (both mobile originated or terminated)
•
failure to modify a call by using Supplementary Services
•
failed attempt to activate, register, query, deactivate or deregister a Supplementary Service
•
unsuccessful GPRS attach or unsuccessful PDP context activation
•
GPRS detach or PDP context deactivation
The release cause report is presented in numeric format. Default output in case of a non-error-
situation is +CEER: 0,0,0. A description associated with each number can be found in the tables
given in the following subclauses and the relevant GSM specifications.
The first parameter <locationID> serves to locate the other two parameters. Depending on the
failure or release cause either <reason> or <ssRelease> are applicable; i.e., if <reason> ≠ 0,
then <ssRelease> = 0.
Vice versa, if <reason> = 0, then <ssRelease> may be ≠ 0.
In addition to AT+CEER, the command ATS18 can be used to check especially the status of data
calls.
Exec. Command Syntax:
Exec. Response:
Test Command Syntax:
Test Response:
Parameter Description:
<locationID>
Location ID as number code. Location IDs are listed in Section 3.4.1, Cause Location ID for the extended error
report. Each ID is related with another table that contains a list of <reason>s or <ssRelease>s.
<reason>
Reason for last call release as number code. The number codes are listed in several tables, sorted by different
categories in the following subclauses. The tables can be found proceeding from the Location ID given in
Section 3.4.1, Cause Location ID for the extended error report.
<ssRelease>
Release cause for last Supplementary Service call (listed in Section 3.4.5, GSM Release cause for
Supplementary Service Call).
Examples:
Example 1
ATD"01751223344";
NO CARRIER
AT+CEER
+CEER: 8,21,0
OK
Example 2
The user attempts to activate call barring, but uses the wrong password.
AT+clck=oi,1,"0000",3;
+CME ERROR:
AT+CEER
+CEER: 35,0,43
OK
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371G)
AT+CEER
+CEER: <locationID>, <reason>, <ssRelease>
OK
ERROR
+CME ERROR
AT+CEER=?
OK
ERROR
+CME ERROR
A mobile originated call is rejected by the remote party.
Call setup is terminated with NO CARRIER.
To check the cause, the caller enters AT+CEER.
The Location ID 8 in Section 3.4.1 points to Section 3.4.4, where 21 =
"Call rejected". 0 = "No error" refers to parameter <ssRelease> that is not applicable.
incorrect password
The Location ID 35 in Section 3.4.1 points to Section 3.4.5, where 43 =
"NumberOfPWAttemptsViolation" may mean that a wrong password has been entered for
more than 3 times. 0 = "No error" refers to parameter <reason> that is not applicable.
Chapter 3 – Status Control Commands
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