ETSI TS 186 016-2 V2.2.1 (2009-07)

Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN simulation services; Closed User Group (CUG); Part 2: Test Suite Structure and Test Purposes (TSS&TP)

RTS/TISPAN-06058-2-NGN-R2

General Information

• Status: Published
• Publication Date: 19-Jul-2009
• Technical Committee: TISPAN 6 - TISPAN Testing
• Current Stage: 12 - Completion
• Due Date: 17-Jul-2009
• Completion Date: 20-Jul-2009

Standards Content (Sample)

ETSI TS 186 016-2 V2.2.1 (2009-07)
Technical Specification


Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
PSTN/ISDN simulation services;
Closed User Group (CUG);
Part 2: Test Suite Structure and Test Purposes (TSS&TP)

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2 ETSI TS 186 016-2 V2.2.1 (2009-07)



Reference
RTS/TISPAN-06058-2-NGN-R2
Keywords
CUG, IMS, testing, TSS&TP
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3 ETSI TS 186 016-2 V2.2.1 (2009-07)
Contents
Intellectual Property Rights . 4
Foreword . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 6
4 Test Suite Structure (TSS) . 6
4.1 Configuration . 7
4.1.1 Testing of the AS . 7
4.1.2 Testing of the UE . 7
5 Test Purposes (TP) . 8
5.1 Introduction . 8
5.1.1 TP naming convention . 8
5.1.2 Test strategy . 8
5.2 Test Purposes for Closed User Group (CUG) . 9
5.2.1 TPs at the originating UA . 9
5.2.2 Test Purposes at the Application Server of the originating User . 9
5.2.2.1 CUG without preference . 10
5.2.2.2 CUG without preference + OAE . 14
5.2.2.3 CUG without preference + OAI . 19
5.2.2.4 CUG with preference . 23
5.2.2.5 CUG with preference + OAE . 28
5.2.2.6 CUG with preference + OAI . 32
5.2.2.7 No CUG . 35
5.2.3 Actions at the AS of the terminating User . 37
5.2.3.1 CUG with OA not allowed . 37
5.2.3.2 CUG with OA allowed . 41
5.2.2.3 No CUG . 44
Annex A (informative): Change history . 46
History . 47

ETSI

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4 ETSI TS 186 016-2 V2.2.1 (2009-07)
Intellectual Property Rights
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 (http://webapp.etsi.org/IPR/home.asp).
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.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
The present document is part 2 of a multi-part deliverable covering PSTN/ISDN simulation services; Closed User
Group (CUG), 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".
ETSI

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5 ETSI TS 186 016-2 V2.2.1 (2009-07)
1 Scope
The present document specifies the test suite structure and test purposes of the Closed User Group (CUG) service, based
on stage three of the IMS closed user group (CUG) simulation services. Within the Next Generation Network (NGN)
the stage 3 description is specified using the IP-Multimedia Call Control Protocol based on Session Initiation Protocol
(SIP) and Session Description Protocol (SDP).
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://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.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ETSI TS 183 054: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Protocol specification Closed
User Group (CUG)".
[2] ETSI TS 186 016-1: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Closed User Group (CUG);
Part 1: Protocol Implementation Conformance Statement (PICS)".
[3] ETSI TS 181 002: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Multimedia Telephony with PSTN/ISDN simulation services".
[4] IETF RFC 3261: "SIP: Session Initiation Protocol".
[5] ETSI ES 283 027: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Endorsement of the SIP-ISUP Interworking between the IP
Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
Not applicable.
ETSI

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6 ETSI TS 186 016-2 V2.2.1 (2009-07)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TS 181 002 [3] and the following apply:
escaped character: See RFC 3261 [4].
NOTE: This may contain additional information.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AS Application Server
CUG Closed User Group
ICB Incoming Communication Barring within a CUG
IMS IP Multimedia Subsystem
IP Internet Protocol
NGN Next Generation Network
OAE Outgoing Access, explicit request required
OAI Outgoing Access, implicit outgoing access for all communications
OCB Outgoing Communication Barring within a CUG
PIXIT Protocol Implementation eXtra Information for Testing
PSTN Public Switched Telephone Network
SDP Session Description Protocol
SIP Session Initiation Protocol
SS Supplementary Services
SUT System Under Test
TP Test Purposes
TSS Test Suite Structure
UA User Agent
UE User Equipment
XML eXtensible Markup Language
4 Test Suite Structure (TSS)
CUG
originating_UE CUG_U01_xxx
originating_AS
 CUG without preference CUG_N01_xxx
 CUG without preference + OAE CUG_N02_xxx
 CUG without preference + OAI CUG_N03_xxx
 CUG with preference CUG_N04_xxx
 CUG with preference + OAE CUG_N05_xxx
 CUG with preference + OAI CUG_N06_xxx
 No CUG CUG_N07_xxx
terminating_AS
 CUG with OA not allowed CUG_N08_xxx
 CUG with OA allowed CUG_N09_xxx
 No CUG CUG_N10_xxx

Figure 1: Test suite structure

ETSI

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7 ETSI TS 186 016-2 V2.2.1 (2009-07)
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 TS 183 054 [1]. The stage 3 description describes the requirements for several network entities and also the
requirements regarding terminal 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:
4.1.1 Testing of the AS
The AS entity is responsible for performing and managing services. The ISC interface is the appropriate access point for
testing.

Figure 2: Applicable interface to test AS functionalities
If the ISC interface is not accessible it is also possible to perform the test of the AS using any NNI (Mw, Mg, Mx)
interface (see figure 3). In case only the Gm interface is accessible this interface can be used instead for testing, but the
verification of all requirements may not be possible.
Mw, Mg, Mx
Mw, Mg, Mx
CSCF
Test (and/or AS) Test
System System
Implementation
under Test

Figure 3: Applicable interfaces for tests using a (generic) NNI interface
4.1.2 Testing of the UE
There are special clauses in the protocol standard describing the procedures that apply at the originating and terminating
user equipment. Therefore the test configuration in figure 4 has been chosen.
ETSI

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8 ETSI TS 186 016-2 V2.2.1 (2009-07)
Gm
User Equipment
Test
System Implementation
under Test

Figure 4: Applicable configuration to test UE functionalities
5 Test Purposes (TP)
5.1 Introduction
For each test requirement a TP is defined.
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 table 1).
Table 1: TP identifier naming convention scheme
Identifier: __
= supplementary service: e.g. "CUG"
= type of IUT: U User equipment
N Network entity
= group 2 digit field representing group reference according to TSS
= sequential number (001-999)

5.1.2 Test strategy
As the base standard TS 183 054 [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 TS 186 016-1 [2]. The criteria applied include the following:
• Whether or not a test case can be built from the TP is not considered.
ETSI

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9 ETSI TS 186 016-2 V2.2.1 (2009-07)
5.2 Test Purposes for Closed User Group (CUG)
5.2.1 TPs at the originating UA
TSS TP CUG reference Selection expression
CUG/originating_UE CUG_U01_001 clause 4.5.2.1
Test purpose
Explicit request of CUG service.
The originating user requests explicitly the CUG service by including in the initial INVITE an xml CUGrequestType
containing the preferred CUG and an outgoing access request set to "true".
Preconditions:
SIP header values:
INVITE:


 TRUE
 [PIXIT]


Comments:
User equipment  Test equipment
  INVITE requesting CUG explicitly

5.2.2 Test Purposes at the Application Server of the originating User
In clauses 5.2.2.1 through to 5.2.2.6 the originating user is member of one closed user group which is not assigned as
preferential. In the following test purposes the CUG index of this closed user group is referred to as "registered
CUGIndex".
In clause 5.2.2.4 through to 5.2.2.6 the originating user is also member of a second closed user group which is assigned
as preferential. In the relevant test purposes the CUG index of this second closed user group is referred to as "preferred
CUGIndex".
In clause 5.2.2.7 the originating user has not subscribed to the CUG service.
ETSI

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10 ETSI TS 186 016-2 V2.2.1 (2009-07)
5.2.2.1 CUG without preference
TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_001 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE with CUG index, successful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 registered CUGIndex,
returns an INVITE request containing an xml element cug with
cugInterlockBinaryCode related to registered CUG index,
networkIndicator (PIXIT) and
cugCommunicationIndicator set to "11" (CUG without outgoing access).
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE1:


 [registered CUG index]



INVITE2:

[PIXIT]
[related to registered CUG index]
11

Comments:
Test equipment (ISC) AS Test equipment (ISC)
INVITE1  INVITE2

TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_002 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE with CUG index, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 registered CUGIndex,
rejects the INVITE request by sending a 603 Decline.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: OCB
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE:


 [registered CUG index]


Comments:
Test equipment (ISC) AS
INVITE

603 Decline
ACK

ETSI

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11 ETSI TS 186 016-2 V2.2.1 (2009-07)
TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_003 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE with CUG index, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 unregistered CUGIndex,
rejects the INVITE request by sending a 403 Forbidden.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE:


 [unregistered CUG]


Comments:
Test equipment (ISC) AS

INVITE
403 Forbidden
ACK

TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_004 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE with CUG index and outgoingAccessRequest = true, successful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 outgoingAccessRequest = true and
 registered CUGIndex,
returns an INVITE request containing an xml element cug with
cugInterlockBinaryCode related to registered CUG index,
networkIndicator (PIXIT) and
cugCommunicationIndicator set to "11" (CUG without outgoing access).
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE1:


 TRUE
 [registered CUG index]



INVITE2:

[registered CUG index]
[related to registered CUG index]
11

Comments:
Test equipment (ISC) AS Test equipment (ISC)
INVITE1  INVITE2

ETSI

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12 ETSI TS 186 016-2 V2.2.1 (2009-07)
TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_005 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE with CUG index and outgoingAccessRequest = true, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 outgoingAccessRequest = true and
 registered CUGIndex,
rejects the INVITE request by sending a 603 Decline.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: OCB
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE:


 TRUE
 [registered CUG index]


Comments:
Test equipment (ISC) AS
INVITE

603 Decline
ACK

TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_006 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE with CUG index and outgoingAccessRequest = true, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 outgoingAccessRequest = true and
 unregistered CUGIndex,
rejects the INVITE request by sending a 403 Forbidden.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE:


 TRUE
 [unregistered CUG]


Comments:
Test equipment (ISC) AS
INVITE
403 Forbidden
ACK

ETSI

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13 ETSI TS 186 016-2 V2.2.1 (2009-07)
TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_007 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE without CUG index, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 outgoingAccessRequest = false,
rejects the INVITE request by sending a 403 Forbidden.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE:


 FALSE


Comments:
Test equipment (ISC) AS

INVITE
403 Forbidden
ACK

TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_008 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE without CUG index and with outgoingAccessRequest = true, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 outgoingAccessRequest = true,
rejects the INVITE request by sending a 403 Forbidden.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE:


 TRUE


Comments:
Test equipment (ISC) AS

INVITE
403 Forbidden
ACK

ETSI

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14 ETSI TS 186 016-2 V2.2.1 (2009-07)
TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference CUG_N01_009 clause 4.5.2.4 PICS 1/1
Test purpose
CUG without preference: INVITE for non-CUG communication, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing no xml element cug,
rejects the INVITE request by sending a 403 Forbidden.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: not allowed
SIP header values:
INVITE:
No xml element
Comments:
Test equipment (ISC) AS
INVITE
403 Forbidden
ACK

5.2.2.2 CUG without preference + OAE
TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference + OAE CUG_N02_001 clause 4.5.2.4 PICS 1/2
Test purpose
CUG without preference + OAE: INVITE with CUG index, successful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 registered CUGIndex,
returns an INVITE request containing an xml element cug with
cugInterlockBinaryCode related to registered CUG index,
networkIndicator (PIXIT) and
cugCommunicationIndicator set to "11" (CUG without outgoing access).
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: allowed per communication
SIP header values:
INVITE1:


 [registered CUG index]



INVITE2:

[PIXIT]
[related to registered CUG index]
11

Comments:
Test equipment (ISC) AS Test equipment (ISC)
INVITE1  INVITE2

ETSI

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15 ETSI TS 186 016-2 V2.2.1 (2009-07)
TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference + OAE CUG_N02_002 clause 4.5.2.4 PICS 1/2
Test purpose
CUG without preference + OAE: INVITE with CUG index, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 registered CUGIndex,
rejects the INVITE request by sending a 603 Decline.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: OCB
Options for public identity in use:
Preferential CUG: None designated
Outgoing access: allowed per communication
SIP header values:
INVITE:


 [registered CUG index]


Comments:
Test equipment (ISC) AS

INVITE
603 Decline
ACK

TSS TP CUG reference Selection expression
CUG/originating_AS/CUG without preference + OAE CUG_N02_003 clause 4.5.2.4 PICS 1/2
Test purpose
CUG without preference + OAE: INVITE with CUG index, unsuccessful.
Ensure that the SUT on receipt of an INVITE request containing an xml element cug with
cugCallOperation containing
 unregistered CUGIndex,
rejects the INVITE request by sending a 403 Forbidden.
Preconditions: Originating user has subscribed to CUG
Options for registered CUG index:
Intra CUG restrictions: None designated
Options for public ide
...