Siemens Release Cause For Call Related Supplementary Services (Crss) (At+Ceer); Gsm Release Cause For Session Management (Sm) (At+Ceer) - Siemens MC35 Command Set

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
9.1.15 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)

9.1.16 GSM release cause for Session Management (SM) (AT+CEER)

Number Description
Causes related to nature of request
25 LLC or SNDCP failure
26 Insufficient ressources
27 Unknown or missing access point name
28 Unknown PDP address or PDP type
29 User authentification failed
30 Activation rejected by GGSN
31 Activation rejected, unspecified
32 Service option not supported
33 Requested service option not subscribed
34 Service option temporarily out of order
35 NSAPI already used
MC35_ATC_01_V05.00 Page 243 of 256 15.07.2002