MC55 AT Command Set
3.4 AT+CEER s
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MC55_ATC_V01.05 Page 74 of 469 2/10/04
Confidential / Released
Reason for last call release as number code. The numb er codes are listed in several tables, sorted by different
categories in the following subclauses. The tables can be found proceeding fro m the Location ID given in sub-
clause 3.4.1.
Release cause for last Supplementary Service call (listed in s ubclause 3.4.9) or last call related use of a Sup-
plementary Service (listed in subclause 3.4.10).
Notes
•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 <ssRelease> = 0. Vice versa, if <reason> = 0, then <ssRelease> may be ¹ 0.
Examples
EXAMPLE 1
EXAMPLE 2
The user attempts to set up a multiparty call, though there are only two parties involved in the present con-
versation:
<reason>(num)
<ssRelease>(num)
ATD"01751223344";
A mobile originated call is rejected by the remote party.
NO CARRIER
Call setup is terminated with NO CARRIER.
AT+CEER
To check the cause, the caller enters AT+CEER.
+CEER: 8,21,0
The Location ID 8 stated in subclause 3.4.1 points to subclause 3.4.6,
where 21 = "Call rejected". 0 = No error (parameter <ssRelease>
OK
is not applicable).
ATD"01751223344";
OK
AT+CHLD=2
OK
AT+CHLD=3
+CME ERROR: operation temporary not allowed
AT+CEER
+CEER: 22,0,2
The Location ID 22 stated in subclause 3.4.1 points to subclaus e 3.4.10,
where 2 = "Initial conditions not fulfilled (one active, one held call)".
OK
0 = No error (parameter <reason> is not applicable).