MC55_ATC_V04.00 Page 71 of 475 3/17/06
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3.4 AT+CEER Extended Error Report
AT+CEER returns an extended error report regarding the reason of the last
• 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 none-error-situation is
+CEER: 0,0,0. A description associated with each number can be found in the tables given in the following sub-
clauses 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.
AT+CEER is not available for data calls, please use ATS18=1 instead. In case of loosed net coverage, MC55 will
disconnect the call but no network release cause is available and the default output will still be given out.
Syntax
Parameter Description
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 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 Sec-
tion 3.4.1, Cause Location ID for the extended error report.
Release cause for last Supplementary Service call (listed in Section 3.4.9, GSM Release cause for Supplemen-
tary Service Call) or last call related use of a Supplementary Service (listed in Section 3.4.10, SIEMENS release
cause for Call-related Supplementary Services (CRSS)).
Test Command
AT+CEER=?
Response(s)
OK
ERROR
+CME ERROR
Exec Command
AT+CEER
Response(s)
+CEER: <locationID>, <reason>, <ssRelease>
OK
ERROR
+CME ERROR
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge Last
GSM 07.07 % % % % % % ! ! !
<locationID>(num)
<reason>(num)
<ssRelease>(num)