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Siemens Brodersen MC55 AT User Manual

Page 74

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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 option not subscribed

34

Service option temporarily 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