AT Command Set
Number
Description
306
Resource Limitation
307
Initiating Release
308
Unrecognized Linked ID
309
Linked Response Unexpected
310
Unexpected Linked Operation
Return Result Problem Codes
311
Unrecognize Invoke ID
312
Return Result Unexpected
313
Mistyped Parameter
Return Error Problem Codes
314
Unrecognized Invoke ID
315
Return Error Unexpected
316
Unrecognized Error
317
Unexpected Error
318
Mistyped Parameter
7.1.14 SIEMENS release cause for Call-related Supplementary Services (CRSS)
(AT+CEER)
Number
Description
0
ECT procedure failed (timer expired)
1
Call has been cleared without receiving an answer to ECT request
2
Initial conditions not fulfilled (one active, one held call)
3
Received "return error"
4
Call has been cleared without receiving an answer to CCBS request
5
Initial conditions for CCBS not fulfilled (Idle CRSS)
TC3X_ATC_01_V04.00
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29.05.2002