MC55_ATC_V04.00 Page 74 of 475 3/17/06
Confidential / Released
3.4.4 GSM release cause for Mobility Management (MM) or Session Management (SM)3 Access class of the SIM is barred by the network provider
4 SABM failure
5 Radio link counter expiry or PerformAbnormalRelease
6 Confirm ABORT of the MM
7 Respond to DEACT REQ
8 Loss of coverage
9 Reestablishment not possible
Number Description
Causes related to MS identification
2 IMSI unknown in HLR
3 Illegal MS
4 IMSI unknown in VLR
5 IMEI not accepted
6 Illegal ME
Cause related to subscription options
11 PLMN not allowed
12 Location Area not allowed
13 Roaming not allowed in this location area
Causes related to PLMN specific network failures and congestion
17 Network failure
22 Congestion
Causes related to nature of request
25 PDP context is deactivated because of a LLC or SNDCP failure
32 Service option not supported
33 Requested service op tion not subscribed
34 Service option tem porarily out of order
36 Regular PDP context deactivation
38 Call cannot be identified
Causes related to invalid messages
95 Semantically incorrect message
96 Invalid mandatory information
97 Message type non-existent or not implemented
98 Message not compatible with protocol state
99 Information element non-existent or not implemented
100 Conditional information element error
101 Messages not compatible with protocol state
111 Protocol error, unspecified
Number Description