ETSI TS 123 018 V8.2.0 (2009-09)

ETSI TS 123 018 V8.2.0 (2009-09)
Technical Specification
Digital cellular telecommunications system (Phase 2+);
Universal Mobile Telecommunications System (UMTS);
Basic call handling;
Technical realization
(3GPP TS 23.018 version 8.2.0 Release 8)
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
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3GPP TS 23.018 version 8.2.0 Release 8 1 ETSI TS 123 018 V8.2.0 (2009-09)
Reference
RTS/TSGC-0423018v820
Keywords
GSM, UMTS
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This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).

The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or

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The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under

Intellectual Property Rights ................................................................................................................................ 2

Foreword ............................................................................................................................................................. 2

Foreword ............................................................................................................................................................. 7

1 Scope ........................................................................................................................................................ 8

2 References ................................................................................................................................................ 8

3 Definitions and abbreviations ................................................................................................................. 10

3.1 Definitions ........................................................................................................................................................ 10

3.2 Abbreviations ................................................................................................................................................... 10

4 Architecture ............................................................................................................................................ 11

4.1 Architecture for an MO call ............................................................................................................................. 11

4.2 Architecture for an MT call .............................................................................................................................. 12

4.3 Architecture for a TO call................................................................................................................................. 12

5 Information flows ................................................................................................................................... 13

5.1 Information flow for an MO call ...................................................................................................................... 13

5.2 Information flow for retrieval of routeing information for an MT call ............................................................ 16

5.2.1 Mobile Terminating Roaming Retry Call ................................................................................................................. 17

5.3 Information flow for an MT call ...................................................................................................................... 19

6 Principles for interactions with supplementary services ........................................................................ 21

6.1 Call Deflection service (3GPP TS 23.072) ....................................................................................................... 22

6.2 Line identification services (3GPP TS 23.081) ................................................................................................ 22

6.2.1 Calling Line Identification Presentation (CLIP) ......................................................................................... 22

6.2.2 Calling Line Identification Restriction (CLIR) ........................................................................................... 22

6.2.3 Connected Line Identification Presentation (COLP) .................................................................................. 22

6.2.4 Connected Line Identification Restriction (COLR) .................................................................................... 22

6.3 Call forwarding services (3GPP TS 23.082) .................................................................................................... 22

6.3.1 Call Forwarding Unconditional (CFU) ....................................................................................................... 22

6.3.2 Call Forwarding on mobile subscriber Busy (CFB) ................................................................................... 22

6.3.3 Call Forwarding on No Reply (CFNRy) ..................................................................................................... 22

6.3.4 Call Forwarding on mobile subscriber Not Reachable (CFNRc)................................................................ 22

6.4 Call wait (3GPP TS 23.083) ............................................................................................................................. 23

6.5 Call hold (3GPP TS 23.083) ............................................................................................................................. 23

6.6 Multiparty (3GPP TS 23.084) .......................................................................................................................... 23

6.7 Closed user group (3GPP TS 23.085) .............................................................................................................. 23

6.8 Advice of charge (3GPP TS 23.086) ................................................................................................................ 23

6.9 User-to-user signalling (3GPP TS 23.087) ....................................................................................................... 23

6.10 Call barring (3GPP TS 23.088) ........................................................................................................................ 23

6.10.1 Barring of outgoing calls ............................................................................................................................ 23

6.10.2 Barring of incoming calls ........................................................................................................................... 23

6.11 Explicit Call Transfer (3GPP TS 23.091) ......................................................................................................... 24

6.12 Completion of Calls to Busy Subscriber (3GPP TS 23.093) ............................................................................ 24

6.13 Multicall (3GPP TS 23.135) ............................................................................................................................. 24

7 Functional requirements of network entities .......................................................................................... 24

7.1 MO call ............................................................................................................................................................. 25

7.1.1 Functional requirements of serving MSC ................................................................................................... 25

7.1.1.1 Process OCH_MSC ............................................................................................................................... 25

7.1.1.2 Procedure Process_Access_Request_MSC ........................................................................................... 25

7.1.1.3 Procedure OG_Call_Setup_MSC .......................................................................................................... 25

7.1.1.4 Procedure Obtain_IMSI_MSC .............................................................................................................. 27

7.1.1.5 Procedure Authenticate_MSC ............................................................................................................... 27

7.1.1.6 Procedure Obtain_IMEI_MSC .............................................................................................................. 27

7.1.1.7 Procedure Check_IMEI_MSC .............................................................................................................. 27

7.1.1.8 Procedure Establish_Originating_TCH_If_Required ........................................................................... 28

7.1.1.9 Procedure Set_CLI_Presentation_Indicator_MSC ................................................................................ 28

7.1.1.10 Procedure Send_Alerting_If_Required ................................................................................................. 28

7.1.1.11 Procedure Set_COLP_Info_MSC ......................................................................................................... 28

7.1.1.12 Procedure Send_Access_Connect_If_Required .................................................................................... 28

7.1.1.13 Procedure Handle_AoC_MO_MSC ...................................................................................................... 28

7.1.1.14 Procedure TCH_Check ......................................................................................................................... 29

7.1.2 Functional requirements of VLR ................................................................................................................ 55

7.1.2.1 Process OCH_VLR ............................................................................................................................... 55

7.1.2.2 Procedure Process_Access_Request_VLR ........................................................................................... 55

7.1.2.3 Procedure OG_Call_Subscription_Check_VLR ................................................................................... 55

7.1.2.4 Procedure Obtain_Identity_VLR .......................................................................................................... 55

7.1.2.5 Procedure Obtain_IMSI_VLR .............................................................................................................. 55

7.1.2.6 Procedure Authenticate_VLR ............................................................................................................... 55

7.1.2.7 Procedure Obtain_Authentication_Sets_VLR....................................................................................... 56

7.1.2.8 Procedure Start_Tracing_VLR .............................................................................................................. 56

7.1.2.9 Procedure Check_IMEI _VLR .............................................................................................................. 56

7.1.2.10 Procedure Obtain_IMEI_VLR .............................................................................................................. 56

7.1.2.11 Process Fetch_Authentication_Sets_VLR ............................................................................................ 56

7.1.2.12 Procedure Check_BAOC ...................................................................................................................... 56

7.1.2.13 Procedure OG_CUG_Check ................................................................................................................. 56

7.1.2.14 Procedure Get_LI_Subscription_Info_MO_VLR ................................................................................. 56

7.1.2.15 Procedure Get_AoC_Subscription_Info_V LR ...................................................................................... 56

7.1.2.16 Procedure Check_OG_Barring ............................................................................................................. 56

7.1.2.17 Process Update_Location_VLR ............................................................................................................ 56

7.2 Retrieval of routeing information for MT call .................................................................................................. 83

7.2.1 Functional requirements of GMSC ............................................................................................................. 83

7.2.1.1 Process MT_GMSC .............................................................................................................................. 83

7.2.1.2 Procedure Obtain_Routeing_Address ................................................................................................... 85

7.2.1.3 Procedure Send_ACM_If_Required ..................................................................................................... 86

7.2.1.4 Procedure Send_Answer_If_Required .................................................................................................. 86

7.2.1.5 Procedure Send_Network_Connect_If_Required ................................................................................. 87

7.2.1.6 Procedure Handle_COLP_Forwarding_Interaction_MSC .................................................................... 87

7.2.1.7 Procedure Activate_CF_Process ........................................................................................................... 87

7.2.1.8 Process MT_CF_MSC .......................................................................................................................... 87

7.2.1.9 Macro CUG_Support_Check_GMSC ................................................................................................... 89

7.2.2 Functional requirements of HLR .............................................................................................................. 115

7.2.2.1 Process SRI_HLR ............................................................................................................................... 115

7.2.2.2 Procedure Check_Parameters .............................................................................................................. 117

7.2.2.3 Procedure Subscription_Check_HLR ................................................................................................. 117

7.2.2.4 Procedure First_Forwarding_HLR ...................................................................................................... 118

7.2.2.5 Procedure PRN_Error_HLR ............................................................................................................... 118

7.2.2.6 Procedure Forward_CUG_Check ....................................................................................................... 118

7.2.2.7 Void..................................................................................................................................................... 118

7.2.2.8 Procedure Check_IC_Barring ............................................................................................................. 118

7.2.2.9 Procedure IC_CUG_Check ................................................................................................................. 118

7.2.2.10 Procedure Handle_CFU ...................................................................................................................... 118

7.2.2.11 Procedure Handle_CFNRc .................................................................................................................. 118

7.2.3 Functional requirements of VLR .............................................................................................................. 136

7.2.3.1 Process PRN_VLR .............................................................................................................................. 136

7.2.3.2 Process Restore_Subscriber_Data_VLR ............................................................................................. 137

7.2.3.3 Process PSI_VLR ................................................................................................................................ 137

7.2.3.4 Procedure Retrieve_Location_Info_VLR ........................................................................................... 137

7.2.3.5 Procedure Active_Info_Retrieval_VLR .............................................................................................. 137

7.2.4 Functional requirements of MSC .............................................................................................................. 152

7.2.4.1 Process Prepage_MSC ........................................................................................................................ 152

7.2.4.2 Procedure Prepaging_Page_MS_MSC................................................................................................ 152

7.2.4.3 Prepaging_Search_For_MS_MSC ...................................................................................................... 152

7.2.4.4 Process OSI_MSC ............................................................................................................................... 152

7.2.4.5 Process RCL_MSC ............................................................................................................................. 152

7.2.4.6 Procedure Active_Info_Retrieval_Page_MSC .................................................................................... 152

7.2.4.7 Procedure Active_Info_Retrieval_Search_MSC................................................................................. 152

7.2.4.8 Procedure Retrieve_IMEI_If_Required .............................................................................................. 153

7.3 MT call ........................................................................................................................................................... 161

7.3.1 Functional requirements of serving MSC ................................................................................................. 161

7.3.1.1 Process ICH_MSC .............................................................................................................................. 161

7.3.1.2 Procedure Page_MS_MSC .................................................................................................................. 163

7.3.1.3 Procedure Search_For_MS_MSC ....................................................................................................... 164

7.3.1.4 Procedure Complete_Call_In_MSC .................................................................................................... 165

7.3.1.5 Void..................................................................................................................................................... 166

7.3.1.6 Procedure Set_CLIP_Info_MSC ......................................................................................................... 166

7.3.1.7 Void..................................................................................................................................................... 167

7.3.1.8 Procedure Establish_Terminating_TCH_If_Required ........................................................................ 167

7.3.1.9 Procedure Handle_AoC_MT_MSC .................................................................................................... 167

7.3.1.10 Procedure Set_COL_Presentation_Indicator_MSC ............................................................................ 167

7.3.2 Functional requirements of VLR .............................................................................................................. 208

7.3.2.1 Process ICH_VLR ............................................................................................................................... 208

7.3.2.2 Void..................................................................................................................................................... 209

7.3.2.3 Procedure Search_For_MS_VLR ....................................................................................................... 209

7.3.2.4 Procedure Get_CW_Subscription_Info_VLR ..................................................................................... 209

7.3.2.5 Procedure Get_LI_Subscription_Info_MT_VLR ............................................................................... 209

7.3.2.6 Procedure Handle_CFB ...................................................................................................................... 209

7.3.2.7 Procedure Handle_CFNRy .................................................................................................................. 209

7.4 Subs_FSM ...................................................................................................................................................... 223

7.4.1 Functional requirements of serving MSC ................................................................................................. 223

7.4.1.1 Process Subs_FSM .............................................................................................................................. 223

7.4.1.1.1 Macro Check_Ongoing_Calls ....................................................................................................... 224

7.4.1.1.2 Macro Update_Non_Speech_Calls_Status .................................................................................... 224

7.4.1.1.3 Macro Increment_Call_Counter .................................................................................................... 224

7.4.1.1.4 Macro Decrement_Call_Counter ................................................................................................... 224

7.5 TO call ............................................................................................................................................................ 246

7.5.1 Functional requirements of inter-connecting MSC ................................................................................... 246

7.5.1.1 Process TO_MSC ................................................................................................................................ 246

8 Contents of messages ........................................................................................................................... 254

8.1 Messages on the B interface (MSC-VLR) ...................................................................................................... 255

8.1.1 Abort ......................................................................................................................................................... 255

8.1.2 Authenticate .............................................................................................................................................. 255

8.1.3 Authenticate ack ....................................................................................................................................... 256

8.1.4 Authenticate negative response ................................................................................................................. 256

8.1.5 Call arrived ............................................................................................................................................... 256

8.1.6 Check IMEI .............................................................................................................................................. 256

8.1.7 Check IMEI ack ........................................................................................................................................ 256

8.1.8 Check IMEI negative response ................................................................................................................. 256

8.1.9 Complete Call ........................................................................................................................................... 257

8.1.10 Complete Call ack ..................................................................................................................................... 258

8.1.11 Complete Call negative response .............................................................................................................. 258

8.1.12 Forward New TMSI .................................................................................................................................. 258

8.1.13 Forward New TMSI ack ........................................................................................................................... 258

8.1.14 Forward New TMSI negative response .................................................................................................... 258

8.1.15 Obtain Subscriber Info .............................................................................................................................. 258

8.1.16 Obtain Subscriber Info ack ....................................................................................................................... 258

8.1.17 Page MS .................................................................................................................................................... 259

8.1.18 Page MS ack ............................................................................................................................................. 259

8.1.19 Page MS negative response ...................................................................................................................... 259

8.1.20 Page MS via SGSN ................................................................................................................................... 260

8.1.21 Process Access Request ............................................................................................................................ 260

8.1.22 Process Access Request ack...................................................................................................................... 260

8.1.23 Process Access Request negative response ............................................................................................... 261