B External References for Supported Interactions

This appendix describes scenarios and corresponding call-session flows that OCECAS supports.

Table B-1 Redirection - Single PMN

Scenario Reference

Redirection to alternative DE: Call Forward Unconditional

3GPP TS 24.604 A.1.1

Redirection to alternative DE: Call Forward Not Logged In

3GPP TS 24.604 A.1.5

Redirection to alternative DE: Call Forward on Busy

3GPP TS 24.604 A.1.4

Redirection to alternative DE: Call Forward on No Answer

3GPP TS 24.604 A.1.3

Redirection to alternative DE: Call Forward on Not Reachable

3GPP TS 24.604 A.1.5


Table B-2 VoLTE - Single PMN

Scenario Reference to Call Flows

VoLTE UE Attachment and IMS Registration,

GSMA FCM.01 3.2.2 & 3GPP TS 24.229 5.7.1.1

VoLTE UE Initiated Detach and IMS Deregistration,

GSMA FCM.01 3.2.2

Basic VoLTE UE to VoLTE UE Voice Call Establishment, Originating Side

GSMA FCM.01 3.2.3

Basic VoLTE UE to VoLTE UE Voice Call Establishment - Terminating Side

GSMA FCM.01 3.2.4

Basic VoLTE UE to VoLTE UE Voice Call Clearing - Initiated

GSMA FCM.01 3.2.5

Basic VoLTE UE to VoLTE UE Voice Call Clearing - Received

GSMA FCM.01 3.2.6

Basic VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Establishment, Originating Side

GSMA FCM.01 3.2.7

Basic VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Establishment, Terminating Side

GSMA FCM.01 3.2.8

Basic VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Clearing - Initiated

GSMA FCM.01 3.2.9

Basic VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Clearing - Received

GSMA FCM.01 3.2.10

Basic VoLTE UE to VoLTE UE - Adding a video media stream - Originating Side

GSMA FCM.01 3.2.11

Basic VoLTE UE to VoLTE UE - Adding a video media stream - Terminating Side

GSMA FCM.01 3.2.12

Basic VoLTE UE to VoLTE UE - Removing a video media stream - Originating Side

GSMA FCM.01 3.2.13

Basic VoLTE UE to VoLTE UE - Removing a video media stream - Terminating Side

GSMA FCM.01 3.2.14


Table B-3 VoLTE- Single PMN (Failures)

Scenario Reference to Call Flows

No Answer from DE

RFC 3665

Busy indicator from DE

RFC 3665

No route to DE

- IE detaches before session establishment with DE

- Deregistration during call

RFC 3665


Table B-4 VoLTE - Roaming

Scenario Reference to Call Flows

Roaming VoLTE UE Attachment and IMS Registration

GSMA FCM.01 5.2.1

Roaming VoLTE UE Initiated Detach and IMS Deregistration

GSMA FCM.01 5.2.2

Roaming VoLTE UE to VoLTE Voice Call Establishment, Originating Side

GSMA FCM.01 5.2.3

Roaming VoLTE UE to VoLTE UE Voice Call Establishment, Terminating Side

GSMA FCM.01 5.2.4

Roaming VoLTE UE to VoLTE UE Voice Call Clearing - Initiated

GSMA FCM.01 5.2.5

Roaming VoLTE UE to VoLTE Voice Call Clearing - Received

GSMA FCM.01 5.2.6

Roaming VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Establishment, Originating Side

GSMA FCM.01 5.2.7

Roaming VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Establishment, Terminating Side

GSMA FCM.01 5.2.8

Roaming VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Clearing - Initiated

GSMA FCM.01 5.2.9

Roaming VoLTE UE to VoLTE UE Multimedia (Voice/Video) Call Clearing - Received

GSMA FCM.01 5.2.10

Roaming VoLTE UE to VoLTE, Adding a video media stream

See following list

- Video Stream added by the roaming UE

GSMA FCM.01 5.2.11

- Video Stream added by the other party

GSMA FCM.01 5.2.11

Roaming VoLTE UE to VoLTE, Removing a video media stream

See following list

- Video Stream removed by roaming UE

GSMA FCM.01 5.2.12

- Video Stream removed by other party

GSMA FCM.01 5.2.12


Table B-5 SRVCC - Enhanced

Scenario Reference To Call Flows

eSRVCC Attachment and IMS Registration

GSMA FCM.01 7.4.1 & 3GPP TS 24.237 A.3.3

UE Voice Call Establishment - Originating Side

GSMA FCM.01 7.4.2 & 3GPP TS 24.237 A.4.2

UE Voice Call Establishment - Terminating Side

GSMA FCM.01 7.4.3

PS-CS SRVCC

- PS-CS Handover Cancellation

- PS-CS Handover Terminating Leg

GSMA FCM.01 7.4.4 & 3GPP TS 24.237 A.6.1

PS-CS SRVCC enhancements using ATCF and with media anchored

3GPP TS 24.237 A.18.3

PS-CS SRVCC enhancements using ATCF and session traverses IBCF

GSMA FCM.01 7.4.4 & 3GPP TS 24.237 A.18.6

PS-CS SRVCC for active call with speech and video using vSRVCC procedure

3GPP TS 24.237 A.19.2


Table B-6 Terminating Access Domain Selection

Scenario Reference

Call termination in IM CN

3GPP TS 24.292 10.4.3

Call termination to CS network via MSC Server enhanced for ICS

3GPP TS 24.292 10.4.5

Call termination over CS

3GPP TS 24.292 10.4.7


Table B-7 Supplementary Services

Scenario Reference to Call Flows or Specification

Originating Identification Presentation

See following list

- no subscription tests

3GPP TS 24.607 4.5.2.9

- Privacy "id" tests

3GPP TS 24.607 4.5.2.9

- Privacy "header" tests

3GPP TS 24.607 4.5.2.9

- Privacy "user" tests

3GPP TS 24.607 4.5.2.9

Originating Identification Restriction

See following list

- "permanent mode" subscription tests

3GPP TS 24.607 4.5.2.4

- "temporary mode" subscription tests

3GPP TS 24.607 4.5.2.4

- no subscription tests

3GPP TS 24.607 4.5.2.4

Terminating Identification Presentation

See following list

- no subscription tests

3GPP TS 24.608 4.5.2.4

- subscription tests

3GPP TS 24.608 4.5.2.4

Terminating Identification Restriction

See following list

- "permanent mode" subscription tests

3GPP TS 24.608 4.5.2.9

- "temporary mode - default restricted" subscription tests

3GPP TS 24.608 4.5.2.9

- "temporary mode - default not restricted" subscription tests

3GPP TS 24.608 4.5.2.9

- no subscription tests

3GPP TS 24.608 4.5.2.9

Communication Forwarding

See following list

- Unconditional (CFU)

3GPP TS 24.604 4.5.2.6 A.1.1

- on Not Logged-in (CFNL)

3GPP TS 24.604 4.5.2.6 A.1.5

- on Busy (CFB)

3GPP TS 24.604 4.5.2.6 A.1.4

- on Not reachable (CFNRc)

3GPP TS 24.604 4.5.2.6

- on No Reply (CFNR)

3GPP TS 24.604 4.5.2.6 A.1.3

- media condition

3GPP TS 24.604 4.9.1.3

- NoReplyTimer

3GPP TS 24.604 4.9.1.1A

Communication Deflection

3GPP TS 24.604 A.1.2

Incoming Call Barring (ICB)

See following list

- barring of all incoming calls

3GPP TS 24.611 4.5.2.6.1

- barring of incoming calls when roaming

3GPP TS 24.611 4.5.2.6.1

- barring of anonymous calls (ACR)

3GPP TS 24.611 4.5.2.6.2

Outgoing Call Barring (OCB)

See following list

- barring of all outgoing calls

3GPP TS 24.611 4.5.2.4.1

- barring of outgoing international calls

3GPP TS 24.611 4.5.2.4.1

- barring of outgoing international calls excl. home country

3GPP TS 24.611 4.5.2.4.1

Communication Hold (HOLD)

See following list

- hold without announcement

3GPP TS 24.610 A.1.1

- hold with announcement

3GPP TS 24.610 A.1.2

- resume without announcement

3GPP TS 24.610 A.2.1

- resume with announcement

3GPP TS 24.610 A.2.2

Ad-Hoc Multi Party Conference

GSMA IR.92 2.3.3

- create a conference with a conference factory URI

3GPP TS 24.147 A.3.2

- user requesting IMS to join another user

3GPP TS 24.147 A.4.4.1

- user leaving the conference

3GPP TS 24.147 A.6.2.1

- user subscribing to the conference event package

3GPP TS 24.147 A.5.2.1