ETSI TS 186 014-2 V4.1.1 (2017-12)

Core Network and Interoperability Testing (INT); Communication Diversion (CDIV) using IP Multimedia (IM) Core Network (CN) subsystem; (3GPPTM Release 12); Part 2: Test Suite Structure and Test Purposes (TSS&TP)

RTS/INT-00144-2

General Information

• Status: Published
• Publication Date: 20-Dec-2017
• Technical Committee: INT - Core Network and Interoperability Testing
• Current Stage: 12 - Completion
• Due Date: 04-Jan-2018
• Completion Date: 21-Dec-2017

Standards Content (Sample)

ETSI TS 186 014-2 V4.1.1 (2017-12)






TECHNICAL SPECIFICATION
Core Network and Interoperability Testing (INT);
Communication Diversion (CDIV) using IP Multimedia (IM)
Core Network (CN) subsystem;
(3GPP™ Release 12);
Part 2: Test Suite Structure and Test Purposes (TSS&TP)

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2 ETSI TS 186 014-2 V4.1.1 (2017-12)



Reference
RTS/INT-00144-2
Keywords
CDIV, conformance, SIP, testing, TSS&TP
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ETSI

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3 ETSI TS 186 014-2 V4.1.1 (2017-12)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
Introduction . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions, symbols and abbreviations . 6
3.1 Definitions . 6
3.2 Symbols . 6
3.3 Abbreviations . 6
4 Test Suite Structure (TSS) . 7
4.0 Table of Test suite Structure. 7
4.1 Configuration . 7
5 Test Purposes (TP) . 8
5.1 Introduction . 8
5.1.1 TP naming convention . 8
5.1.2 Test strategy . 9
5.2 Signalling requirements . 9
5.2.1 Actions at the AS of the diverting User . 9
5.2.1.1 Diversion procedures . 9
5.2.1.2 Notification procedure of the originating terminating and diverting user . 11
5.2.1.2.1 Originating user . 11
5.2.1.2.2 Diverted-to user . 33
5.2.1.2.3 Diverting user . 43
5.2.2 Actions at the AS of the diverted to User . 44
5.2.3 Actions at the user equipment . 47
5.2.3.1 Actions at the originating UE . 47
5.2.3.2 Action at the diverted to UE . 48
5.2.3.3 Actions at the diverting UE . 50
5.3 Interaction with other services . 52
5.3.1 Terminating Identification Presentation (TIP) . 52
5.3.2 Terminating Identification Restriction (TIR) . 53
5.3.3 Originating Identification Restriction (OIR) . 54
5.3.4 Anonymous Communication Rejection and Communication Barring (ACR/CB) . 55
5.3.5 Explicit Communication Transfer (ECT) . 57
History . 59


ETSI

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4 ETSI TS 186 014-2 V4.1.1 (2017-12)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Core Network and Interoperability
Testing (INT).
The present document is part 2 of a multi-part deliverable covering Communication Diversion (CDIV), as identified
below:
Part 1: "Protocol Implementation Conformance Statement (PICS)";
Part 2: "Test Suite Structure and Test Purposes (TSS&TP)";
Part 3: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification".
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
The Communications Diversion (CDIV) services enables the diverting user, to divert the communications addressed to
diverting user to another destination.

ETSI

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5 ETSI TS 186 014-2 V4.1.1 (2017-12)
1 Scope
The present document specifies the Test Suite Structure and Test Purposes (TSS&TP) for Communications Diversion
(CDIV) services, ETSI TS 124 604 [1].
The Communications Diversion (CDIV) services enables diverting user, to divert the communications addressed to
diverting user to another destination.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 124 604: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; Communication Diversion (CDIV) using IP
Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.604
Release 12)".
[2] ETSI TS 186 014-1: "Core Network and Interoperability Testing (INT); Communication Diversion
(CDIV) using IP Multimedia (IM) Core Network (CN) subsystem; (3GPP™ Release 12); Part 1:
Protocol Implementation Conformance Statement (PICS)".
[3] ISO/IEC 9646-1:1994: "Information technology - Open Systems Interconnection - Conformance
testing methodology and framework - Part 1: General concepts".
[4] IETF RFC 7044: "An Extension to the Session Initiation Protocol (SIP) for Request History
Information".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
Not applicable.
ETSI

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6 ETSI TS 186 014-2 V4.1.1 (2017-12)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI TS 124 604 [1] and the following
apply:
Abstract Test Suite (ATS): Refer to ISO/IEC 9646-1 [3].
Implementation Under Test (IUT): Refer to ISO/IEC 9646-1 [3].
PICS pro forma: Refer to ISO/IEC 9646-1 [3].
Point of control and observation: Refer to ISO/IEC 9646-1 [3].
Protocol Implementation Conformance Statement (PICS): Refer to ISO/IEC 9646-1 [3].
System Under Test (SUT): Refer to ISO/IEC 9646-1 [3].
Test Purpose (TP): Refer to ISO/IEC 9646-1 [3].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Gm Reference Point between a UE and a P-CSCF
Mg Reference Point between an MGCF and a CSCF
Mw Reference Point between a CSCF and another CSCF
Mx Reference Point between a CSCF/BGCF and IBCF
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI TS 124 604 [1] and the following apply:
ISC IP Multimedia Subsystem Service Control
NDUB Network Determined User Busy
NNI Network - Network Interface
TSS Test Suite Structure
UDUB User Determined User Busy
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7 ETSI TS 186 014-2 V4.1.1 (2017-12)
4 Test Suite Structure (TSS)
4.0 Table of Test suite Structure
Table 1: Test suite structure
Netw
ASdivertingUser/DivProcedures CDIV_N01_xxx
ASdivertingUser/NotOrigUser CDIV_N02_xxx
ASdivertingUser/NotTermUser CDIV_N03_xxx
ASdivertingUser/NotDivUser CDIV_N04_xxx
ASdiverted-to CDIV_N05_xxx

User
OrigUE CDIV_U01_xxx
Diverted-toUE CDIV_U02_xxx
DivertingUE CDIV_U03_xxx

Interaction

TIP CDIV_N06_xxx
TIR CDIV_N07_xxx
OIR CDIV_N08_xxx
ACR-CB CDIV_N09_xxx
ECT CDIV_N10_xxx

4.1 Configuration
The scope of the present document is to test the signalling and procedural aspects of the stage 3 requirements as
described in ETSI TS 124 604 [1]. The stage 3 description respects the requirements to several network entities and also
to requirements regarding to end devices. Therefore several interfaces (reference points) are addressed to satisfy the test
of the different entities.
Therefore, to test the appropriate entities, the configurations below are applicable:
Testing of the Application Server: This entity is responsible to perform the service. Hence the ISC interface is the
appropriate access point. Figure 1 points to this.

Figure 1: Applicable interface to test AS functionalities
If the ISC interface is not accessible it is also applicable to perform the test of the AS using any NNI (Mw, Mg, Mx)
interface (consider figure 2). In case only the Gm interface is accessible this shall be used instead. In this case, be aware
that the verification of several requirements is impeded.
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8 ETSI TS 186 014-2 V4.1.1 (2017-12)

Figure 2: Applicable interfaces to test using the (generic) NNI interface
Figure 3 illustrates the usage of any NNI interface.
Testing of User Equipment: There are several requirements regarding to the end devices. Therefore, a special
configuration appears.

Figure 3: Applicable configuration to test the User Equipment
5 Test Purposes (TP)
5.1 Introduction
5.1.1 TP naming convention
TPs are numbered, starting at 001, within each group. Groups are organized according to the TSS. Additional references
are added to identify the actual test suite and whether it applies to the network or the user (see figure 4).
Identifier: __
= supplementary service: e.g. "CDIV"
= type of IUT: U User
N Network
yyy service
= group 2 digit field representing group reference according to TSS
= sequential number (001-999)

Figure 4: TP identifier naming convention scheme
ETSI

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9 ETSI TS 186 014-2 V4.1.1 (2017-12)
5.1.2 Test strategy
As the base standard ETSI TS 124 604 [1] contains no explicit requirements for testing, the TPs were generated as a
result of an analysis of the base standard and the PICS specification ETSI TS 186 014-1 [2].
5.2 Signalling requirements
5.2.1 Actions at the AS of the diverting User
5.2.1.1 Diversion procedures
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/DivProcedures CDIV_N01_001 4.5.2.6.1 PICS 4.5.1/2 AND
PICS 4.7.1/2
Test purpose
Served user has activated CFB, maximum number of diversion exceeded.

Ensure that the 486 (Busy here) final response with a Warning header is sent to the original user if the served user
has activated the CFB simulation service and the served user is busy and if the maximum number of diversions is
exceeded.
SIP header values:
INVITE: sip:SIP#n@ example.com SIP/2.0
History-Info: ;index=1,
 Build additional entries with non significant uri values
 ;index=1.n.1
Warning: is present

NOTE: For each redirection a history-entry is added the History-Info header and the relevant index is
incremented according the rules described in clause 4.5.2.6.2.3 of [1]. In short: each redirection is
represented by a "." (dot) in the latest history-entry.
Comments:
SIP#1 AS  SIP#n SIP#n+1





INVITE 1  INVITE 1

  486 Busy Here
486 (Busy here)  ACK
ACK

ETSI

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10 ETSI TS 186 014-2 V4.1.1 (2017-12)
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/DivProcedures CDIV_N01_002 4.5.2.6.1 PICS 4.5.1/2 AND
PICS 4.7.1/3
Test purpose
Served user has activated CFNR, maximum number of diversion exceeded.

Ensure that the 480 (Temporarily unavailable) final response with a Warning header is sent to the original user if
the served user does not answer the communication request and if the maximum number of diversions is
exceeded.
SIP header values:
INVITE: sip:SIP#n@ example.com SIP/2.0
History-Info: ;index=1,
  Build additional entries with non significant uri values
  ;index=1.n.1
Warning: is present

NOTE: For each redirection a history-entry is added the History-Info header and the relevant index is
incremented according the rules described in clause 4.5.2.6.2.3 of [1]. In short: each redirection is
represented by a "dot" in the latest history-entry.
Comments:
SIP#1 AS  SIP#n SIP#n+1
INVITE  INVITE
180 Ringing  180 Ringing
No reply timer expires
480 (Temporarily unavailable)  CANCEL
ACK  200 OK CANCEL
  487 Request Terminated
  ACK

TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/DivProcedures CDIV_N01_003 4.5.2.6.1 PICS 4.5.1/2 AND
PICS 4.7.1/1
Test purpose
Served user has activated CFU, maximum number of diversion exceeded.

Ensure that the 480 (Temporarily unavailable) final response with a Warning header is sent to the original user if
the served user has activated the CFU simulation service and if the maximum number of diversions is exceeded.
SIP header values:
INVITE: sip:SIP#n@ example.com SIP/2.0
History-Info: ;index=1,
  Build additional entries with non significant uri values
  ;index=1.n.1
Warning: is present

NOTE: For each redirection a history-entry is added the History-Info header and the relevant index is
incremented according the rules described in clause 4.5.2.6.2.3 of [1]. In short: each redirection is
represented by a "dot" in the latest history-entry.
Comments:
SIP#1 AS  SIP#n SIP#n+1

INVITE
480 (Temporarily unavailable)

ACK

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11 ETSI TS 186 014-2 V4.1.1 (2017-12)
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/DivProcedures CDIV_N01_004 4.5.2.6.1 PICS 4.5.1/2 AND
PICS 4.7.1/4 OR
PICS 4.7.1/5
Test purpose
Served user has activated CD, maximum number of diversion exceeded.

Ensure that the 480 (Temporarily unavailable) final response with a Warning header is sent to the original user if
the served user has activated the CD simulation service and if the maximum number of diversions is exceeded.
SIP header values:
INVITE: sip:SIP#n@ example.com SIP/2.0
History-Info: ;index=1,
  Build additional entries with non significant uri values
  ;index=1.n.1
Warning: is present

NOTE: For each redirection a history-entry is added the History-Info header and the relevant index is
incremented according the rules described in clause 4.5.2.6.2.3 of [1]. In short: each redirection is
represented by a "dot" in the latest history-entry.
Comments:
SIP#1 AS  SIP#n SIP#n+1
INVITE  INVITE
180 Ringing  180 Ringing

 302 Moved Temporarily
  ACK
480 (Temporarily unavailable)
ACK

5.2.1.2 Notification procedure of the originating terminating and diverting user
5.2.1.2.1 Originating user
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/NotOrigUser CDIV_N02_001 4.5.2.6.4 PICS 4.5.1/2 AND
PICS 4.7.3/3 AND
(PICS 4.7.1/1 OR PICS
4.7.1/2 OR PICS 4.7.1/6
OR PICS 4.7.1/7)
Test purpose
Communication forwarding using CFU or using CFB NDUB, CFNL or CFNRc with applying diversion condition;
originating user is not notified.

When Communication Diversion occurs and if the notification procedures of the originating user is supported then
no 181 (Call Is Being Forwarded) response shall be sent towards the originating user if the served users
subscription option is set to: Originating user receives notification that his communication has been diverted
(forwarded or deflected) = no.
Subscription options:
Originating user receives notification that his communication has been diverted (forwarded or deflected) = no
Comments:
SIP#1 AS SIP#2 SIP#3
INVITE

   INVITE

ETSI

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12 ETSI TS 186 014-2 V4.1.1 (2017-12)
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/NotOrigUser CDIV_N02_002 4.5.2.6.4 PICS 4.5.1/2 AND
PICS 4.7.3/3 AND PICS
4.7.3/4 AND PICS 4.7.3/5
AND (PICS 4.7.1/1 OR
PICS1/2 OR PICS 4.7.1/6
OR PICS 4.7.1/7)
Test purpose
Communication forwarding using CFU or using CFB NDUB, CFNL or CFNRc with applying diversion condition;
originating user is notified.

When Communication Diversion occurs and if the notification procedures of the originating user is supported then
a 181 (Call Is Being Forwarded) response shall be sent towards the originating user containing:
a P-Asserted-Identity header with the URI of the served user and
a History-Info header
including a first entry with the hi-targeted-to-URI of the served, index = 1
and
including a second entry with the hi-targeted-to-URI of the diverted-to user, cause = CAU_VA and escaped
Privacy header set to 'history', index = 1.1 and including the 'mp-param' hi-target-param set to the index-val of
this second hi-targeted-to-URI.
Subscription options:
Originating user receives notification that his communication has been diverted (forwarded or deflected) = yes
Served user allows the presentation of diverted to URI to originating user in diversion notification = yes
Served user allows the presentation of his/her URI to originating user in diversion notification = yes
SIP header values:
181 Call is Being Forwarded:
P-Asserted-Identity: SIP#2
History-Info: ;index=1,
 ;index=1.1;mp=1.1
Comments:
SIP#1 AS SIP#2 SIP#3
INVITE

181 Call is Being Forwarded
   INVITE

ETSI

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13 ETSI TS 186 014-2 V4.1.1 (2017-12)
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/NotOrigUser CDIV_N02_003 4.5.2.6.4 PICS 4.5.1/2 AND
PICS 4.7.3/3 AND
(PICS 4.7.3/5
OR PICS 4.7.4/3) AND
PICS 4.7.3/4
AND (PICS 4.7.1/1 OR
PICS1/2 OR PICS 4.7.1/6
OR PICS 4.7.1/7)
Test purpose
Communication forwarding using CFU or using CFB NDUB, CFNL or CFNRc with applying diversion condition;
originating user is notified.

When Communication Diversion occurs and if the notification procedures of the originating user is supported then
a 181 (Call Is Being Forwarded) response shall be sent towards the originating user containing:
a P-Asserted-Identity header with the URI of the served user and
a Privacy header set to "id" and
a History-Info header
including a first entry with the hi-targeted-to-URI of the served user with a Privacy header set to "history",
index = 1
and
including a second entry with the hi-targeted-to-URI of the diverted-to user with a Privacy header set to
"history", cause = CAU_VA, index = 1.1 and including the 'mp-param' hi-target-param set to the index-val of
this second hi-targeted-to-URI.
Subscription options:
Originating user receives notification that his communication has been diverted (forwarded or deflected) = yes
Served user allows the presentation of diverted to URI to originating user in diversion notification = no
Served user allows the presentation of his/her URI to originating user in diversion notification = no OR
Served user has subscribed to TIR in permanent mode
SIP header values:
181 Call is Being Forwarded:
P-Asserted-Identity: SIP#2
Privacy: id
History-Info: ;index=1,
 ;index=1.1;mp=1.1
Comments:
SIP#1 AS SIP#2 SIP#3
INVITE

181 Call is Being Forwarded
   INVITE

ETSI

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14 ETSI TS 186 014-2 V4.1.1 (2017-12)
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/NotOrigUser CDIV_N02_004 4.5.2.6.4 PICS 4.5.1/2 AND
PICS 4.7.3/3 AND
(PICS 4.7.3/5
OR PICS 4.7.4/3) AND
PICS 4.7.3/4
AND (PICS 4.7.1/1 OR
PICS1/2 OR PICS 4.7.1/6
OR PICS 4.7.1/7)
Test purpose
Communication forwarding using CFU or using CFB NDUB, CFNL or CFNRc with applying diversion condition;
originating user is notified.

When Communication Diversion occurs and if the notification procedures of the originating user is supported then
a 181 (Call Is Being Forwarded) response shall be sent towards the originating user containing:
a P-Asserted-Identity header with the URI of the served user and
a Privacy header set to "id" and
a History-Info header
including a first entry with the hi-targeted-to-URI of the served user with a Privacy header set to "history",
index = 1
and
including a second entry with the hi-targeted-to-URI of the diverted-to user, cause = CAU_VA and escaped
Privacy header set to 'history', index = 1.1 and including the 'mp-param' hi-target-param set to the index-val of
this second hi-targeted-to-URI.
Subscription options:
Originating user receives notification that his communication has been diverted (forwarded or deflected) = yes
Served user allows the presentation of diverted to URI to originating user in diversion notification = yes
Served user allows the presentation of his/her URI to originating user in diversion notification = no OR
Served user has subscribed to TIR in permanent mode
SIP header values:
181 Call is Being Forwarded:
P-Asserted-Identity: SIP#2
Privacy: id
History-Info: ;index=1,
  ;index=1.1;mp=1.1
Comments:
SIP#1 AS SIP#2 SIP#3
INVITE

181 Call is Being Forwarded
   INVITE

ETSI

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15 ETSI TS 186 014-2 V4.1.1 (2017-12)
TSS TP Reference [1], Selection expression
Netw/ASdivertingUser/NotOrigUser CDIV_N02_005 4.5.2.6.4 PICS 4.5.1/2 AND
PICS 4.7.3/3 AND
(PICS 4.7.3/5
OR PICS 4.7.4/3) AND
PICS 4.7.3/4
AND (PICS 4.7.1/1 OR
PICS1/2 OR PICS 4.7.1/6
OR PICS 4.7.1/7)
Test purpose
Communication forwarding using CFU
...