C.2 Example of A REFER’s B to C

24.6293GPPExplicit Communication Transfer (ECT) using IP Multimedia (IM) Core Network (CN) subsystemProtocol specificationRelease 18TS

This scenario is added to show that the solution presented in the present document is able to support classical charging models. Assumption in this scenario is that A originated the original call and is thus charged for initial A-B communication.

Figure C.2: Example of a REFER’s B to C

Table C.2

Initial Session Initiated By

Initial Session A-B

Transferred Session

Transfer Target C

A=Transferee

Transferee (A): A-B

Transferee (A): A-B

Transferor (B): B-C

A=Transferor

Transferor (A): A-B

Transferor (A): A-B

Transferor (A): A-C

Annex D (informative):
Void

Annex E (informative):
Change history

Change history

Date

TSG #

TSG Doc.

CR

Rev

Subject/Comment

Old

New

2008-01

Publication as ETSI TS 183 029

2.5.0

2008-01

Conversion to 3GPP TS 24.529

2.5.1

2008-01

Technically identical copy as 3GPP TS 24.629 as basis for further development.

2.5.2

2008-02

Implemented C1-080104, C1-080665

2.6.0

2008-04

Implemented C1-080894, C1-080895, C1-081098, C1-081099, C1-081114

2.7.0

2008-05

Implemented C1-081918

2.8.0

2008-05

Editorial changes done by MCC

2.8.0

2.8.1

2008-06

CT#40

CP-080335

CP-080629 was approved by CT#40 and version 8.0.0 is created by MCC for publishing

2.8.1

8.0.0

2008-09

CT#41

CP-080533

0001

Removal of normative statement in a NOTE

8.0.0

8.1.0

2008-09

CT#41

CP-080533

0002

Applicability statement in scope

8.0.0

8.1.0

2009-03

CT#43

CP-090144

0005

1

Invocation of special REFER procedures

8.1.0

8.2.0

2009-03

CT#43

CP-090159

0006

2

Clarification of ECT interaction with CONF

8.1.0

8.2.0

2009-03

CT#43

Editorial cleanup by MCC

8.1.0

8.2.0

2009-06

CT#44

CP-090416

0007

1

NOTIFY for call transfer with 3PCC

8.2.0

8.3.0

2009-06

CT#44

CP-090416

0008

1

Identity handling for ECT

8.2.0

8.3.0

2009-09

CT#45

CP-090682

0009

1

Correction to transferee and transfer target UE procedures

8.3.0

9.0.0

2010-06

CT#48

CP-100371

0010

2

Blind Call transfer

9.0.0

10.0.0

2011-09

CT#53

CP-110693

0012

4

Referred-By header setting by the call transfer AS

10.0.0

11.0.0

2011-09

CT#53

CP-110693

0013

Removing 3pcc figure

10.0.0

11.0.0

2012-12

CT#58

CP-120778

0018

3

Emergency call ECT suppression

11.0.0

11.1.0

2012-12

CT#58

CP-120816

0019

2

Reference to ODB specification for ECT

11.0.0

11.1.0

2013-03

CT#59

CP-130100

0021

1

Announcement for 3PCC ECT

11.1.0

11.2.0

2013-06

CT#60

CP-130416

0014

9

Prevent ECT for PSAP callback

11.2.0

12.0.0

2013-09

CT#61

CP-130511

0024

2

Blind and Assured Transfer description

12.0.0

12.1.0

2013-09

CT#61

CP-130507

0025

draft-ietf-ecrit-psap-callback reference update

12.0.0

12.1.0

2013-12

CT#62

CP-130758

0026

2

Reference update: draft-ietf-ecrit-psap-callback

12.1.0

12.2.0

2013-12

CT#62

CP-130744

0028

Removal of Editor’s Note

12.1.0

12.2.0

2013-12

CT#62

CP-130763

0029

5

Correction of assured transfer

12.1.0

12.2.0

2014-03

CT#63

CP-140143

0032

ECT clarification – Transfer attempt signification

12.2.0

12.3.0

2014-03

CT#63

CP-140147

0031

4

Update of 3GPP TS 24.629

12.2.0

12.3.0

2014-06

CT#64

CP-140330

0033

1

Editorial corrections to 24.629

12.3.0

12.4.0

2014-12

CT#66

CP-140833

0034

1

Reference update: RFC 7090 (draft-ietf-ecrit-psap-callback)

12.4.0

12.5.0

2015-03

CT#67

CP-150067

0035

3

Update REFER to reflect RFC 6665

12.5.0

12.6.0

2015-12

CT#70

Upgrade to Rel-13

12.6.0

13.0.0

2016-03

CT#71

CP-160068

0037

1

Update draft-ietf-sipcore-refer-clarifications reference to reflect RFC 7647

13.0.0

13.1.0

2017-03

SA#75

Upgrade to Rel-14

13.1.0

14.0.0

Change history

Date

Meeting

TDoc

CR

Rev

Cat

Subject/Comment

New version

2018-03

CT#79

CP-180080

0038

2

B

Interaction between ECT and "Enhanced calling name" service

15.0.0

2020-03

CT#87e

CP-200123

0039

B

Adding interactions with "Multi-Device" and "Multi-Identity" services

16.0.0

2022-04

CT#95e

Update to Rel-17 version (MCC)

17.0.0

2022-12

CT#98e

CP-223134

0040

3

B

MPS priority for ECT supplementary service

18.0.0