Specifications

TC35i AT Command Set
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TC35i_ATC_V01.05 Page 85 of 278 04.08.2003
4.10 AT+CEER Extended error report
Test command
AT+CEER=?
Response
OK
Execute command
AT+CEER
TA returns an extended error report of the reason for
· the last failure to set up a call (both mobile originated or terminated)
· the last call release
· the last failure to modify a call by using Supplementary Services
· the last failed attempt to activate, register, deactivate or deregister a Sup-
plementary Service
The error report is presented in numeric format. A description associated with
each number can be found in the Appendix.
The first parameter <location ID> serves to locate the other two parameters.
Depending on the failure either <reason> or <ss_release> are applicable.
Response
+CEER: <location ID>, <reason > , <ss_release>OK
Parameter
<location ID> Location ID as number code.
Location IDs are listed in Chapter 8.1.5. Each ID is related
with another table that contains a list of <reason>s or
<ss_release>s.
<reason> Reason for last failure as number code.
<reason> numbers and associated descriptions are listed in
several tables, sorted by different categories (see Chapters
8.1.6 to 8.1.18. The chapter numbers can be found proceed-
ing from the Location ID table in Chapter 8.1.5.
<ss_release> Reason for last failure related to a Supplementary Service.
<ss_release> numbers and associated descriptions are
listed in several tables (see Chapters 8.1.13 and 8.1.14. The
chapter numbers can be found proceeding from the Loca-
tion ID table in Chapter 8.1.5.
Reference
GSM 07.07
Note
· AT+CEER is not available for data calls, please use ATS18=1.
· Default output in the case of a no-error-situation is +CEER: 0,0,0.
· If <reason> ¹ 0, then <ss_release> = 0. Vice versa, if <reason> = 0, then
<ss_release> may be ¹ 0.
Example 1
A mobile originated call is rejected by the called party. Call setup is terminated
with NO CARRIER. To check for the cause the caller enters AT+CEER:
Atd”017511223344”; Call is rejected by called party.
NO CARRIER
at+ceer
+CEER: 8,21,0 Location ID stated in Chapter 8.1.5: 8 = GSM call
OK for L3 Call Control. The reference points to Chapter
8.1.10 where 21 = “Call rejected” and 0 = “No error”
(parameter <ss_release> is not applicable).