Siemens Release Cause For Call-Related Supplementary Services (Crss) (At+Ceer) - Siemens TC37 Module At Command Reference

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 Page 193 of 204 29.05.2002