ETSI TS 186 022-2 V2.1.1 (2009-07)

ETSI TS 186 022-2 V2.1.1 (2009-07)
Technical Specification


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

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2 ETSI TS 186 022-2 V2.1.1 (2009-07)



Reference
DTS/TISPAN-06039-2-NGN-R2
Keywords
CW, IMS, testing, TSS&TP
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3 ETSI TS 186 022-2 V2.1.1 (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.5
3.1 Definitions.5
3.2 Abbreviations.6
4 Test Suite Structure (TSS) and Configuration.6
4.1 Configuration.6
5 Test Purposes (TP).7
5.1 Introduction.7
5.1.1 TP naming convention.7
5.1.2 Test strategy.8
5.2 TPs for Communication Waiting (CW).8
5.2.1 Test purposes at the destination (user B) UE.8
5.2.2 Test purposes at the originating (user C) UE.16
5.2.3 Test purposes at the Application Server .16
5.3 Interaction with other supplementary services .20
5.3.1 Communication diversion services (CDIV).20
5.4 Test purposes for Service Configuration .23
History .24

ETSI

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4 ETSI TS 186 022-2 V2.1.1 (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; Communication
Waiting (CW), as identified below:
Part 1: "Protocol Conformance Implemetaion Statement (PICS)";
Part 2: "Test Suite Structure and Test Purposes (TSS&TP)";
ETSI

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5 ETSI TS 186 022-2 V2.1.1 (2009-07)
1 Scope
The present document specifies the Test Suite Structure and Test Purposes of the Communication Waiting (CW)
service, based on stage 1 and stage 2 of the ISDN call waiting supplementary services. It provides the protocol details in
the IP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP) and the 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 124 615: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Communication Waiting (CW) using IP Multimedia
(IM) Core Network (CN) subsystem; Protocol Specfication (3GPP TS 24.615 version 8.0.1
Release 8)".".
[2] ETSI TS 186 022-1: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Communication Waiting
(CW); Part 1: Protocol Implementation Conformance Statement (PICS)".
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 186 022-2 V2.1.1 (2009-07)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TS 124 615 [1] apply.
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in TS 124 615 [1] apply.
4 Test Suite Structure (TSS) and Configuration
Table 1a
CW
destination_UE CW_U01_xxx
originating_UE CW_U02_xxx
AS CW_N01_xxx
interaction CDIV CW_N02_xxx
configuration CW_N03_xxx

4.1 Configuration
The scope of the the present document is to test the signalling and procedural aspects of the stage 3 requirements as
described in [1]. The stage 3 description respects the requirements to several network entities and also to requirments
regarding to end devices. Therfore several interfaces (reference points) are addressed to sadisfy the test of the different
entities.
Therfore to test the appropriate entities the configurations below are applicable:
Testing of the Application Server: This entitie 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 accessable 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 accessable this shall be used instead. In this case, be aware
that the verification of several requirements is impeded.
ETSI

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7 ETSI TS 186 022-2 V2.1.1 (2009-07)
Mw, Mg, Mx
Mw, Mg, Mx
CSCF
Test (and/or AS) Test
System System
Implementation
under Test

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. Therfore a special
configuration appears
Gm
User Equipment
Test
System Implementation
under Test

Figure 3: Applicable configuration to test the User Equipment
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).
ETSI

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8 ETSI TS 186 022-2 V2.1.1 (2009-07)
Table 1: TP identifier naming convention scheme
Identifier: __
= supplementary service: e.g. "CW"
= type of IUT: U User - equipment
N Network
= group 2 digit field representing group reference according to TSS
= sequential number (001-999)

5.1.2 Test strategy
As the base standard TS 124 615 [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 186 022-1 [2]. The criteria applied include the following:
• whether or not a test case can be built from the TP is not considered.
5.2 TPs for Communication Waiting (CW)
5.2.1 Test purposes at the destination (user B) UE
TSS TP Reference Selection expression
CW/destination_UE CW_U01_001 4.5.5.3.2 PICS 2/1 AND
PICS 2/4
Test purpose
The terminating User Equipment applies the Communication Waiting indication to the user.

Ensure that the user B User Equipment is able to notify the user that the communication establishment is waiting.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/3gpp-ims+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-3gpp version="1"
 alternative-service
  action
  call-waiting-indication

Comments:
Test System User Equipment

Establish a confirmed communication

INVITE
100 Trying
180 Ringing
Indicate Communication Waiting to the user

Apply post test routine



ETSI

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9 ETSI TS 186 022-2 V2.1.1 (2009-07)
TSS TP Reference Selection expression
CW/destination_UE CW_U01_002 4.5.5.3.2 PICS 2/4
Test purpose
The terminating User Equipment sends a 180 Ringing if UDUB does not apply.

Ensure that the user B User Equipment is able to send a 180 Ringing if the termina is not User determined User Busy.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/3gpp-ims+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-3gpp version="1"
 alternative-service
  action
  call-waiting-indication

Comments:
Test System User Equipment

Establish a confirmed communication

INVITE

100 Trying
180 Ringing

Apply post test routine



TSS TP Reference Selection expression
CW/destination_UE CW_U01_003 4.5.5.3.2 PICS 2/3 AND
PICS 2/4
Test purpose
The terminating User Equipment sends a 180 Ringing if UDUB does not apply. A Communication Waiting indication is
contained in the 180.

Ensure that the user B User Equipment is able to send a 180 Ringing if the termina is not User determined User Busy.
Ensure that Communication Waiting is contained in the Alert-Info header and the value is
.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/3gpp-ims+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-3gpp version="1"
 alternative-service
  action
  call-waiting-indication

180 Ringing Alert-Info:
Comments:
Test System User Equipment

Establish a confirmed communication

INVITE

100 Trying
180 Ringing Alert-Info:



Apply post test routine


ETSI

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10 ETSI TS 186 022-2 V2.1.1 (2009-07)

TSS TP Reference Selection expression
CW/destination_UE CW_U01_004 4.5.5.3.2 PICS 2/3
Test purpose
The terminating User Equipment is able to sent a Communication Waiting indication in a 180 response.

Ensure that the user B User Equipment is able accept a waiting communication and sends a Communication Waiting
indication I the 180 Ringing response. An Alert-Info header is contained in the 180 and the value is
.
Preconditions:
SIP header values:
180 Ringing Alert-Info:
Comments:
Test System User Equipment

Establish a confirmed communication


INVITE
100 Trying
180 Ringing Alert-Info:



Apply post test routine



TSS TP Reference Selection expression
CW/destination_UE CW_U01_005 4.5.5.3.3 PICS 2/4 AND
PICS 3/2
Test purpose
The terminating User Equipment starts timer T and the timer is expiered.
AS-CW

Ensure that the user B User Equipment is able starts timer T .
AS-CW
If the timer is exired, the User Equipment stops the Communication Waiting to the user.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/3gpp-ims+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-3gpp version="1"
 alternative-service
  action
  call-waiting-indication

Comments:
Test System User Equipment

Establish a confirmed communication

INVITE
100 Trying
180 Ringing
Start timer T
AS-CW

Timeout T
AS-CW
480 Temporarily Unavailable

ACK

Apply post test routine



ETSI

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11 ETSI TS 186 022-2 V2.1.1 (2009-07)
TSS TP Reference Selection expression
CW/destination_UE CW_U01_006 4.5.5.3.2 NOT PICS 2/4
Test purpose
The terminating User Equipment sends a 415 Unsupported Media Type if the received INVITE contains a XML CW
MIME attachment indicating CW

Ensure that the user B User Equipment is able to send a 415 Unsupported Media Type if the User Equipment does not
support the CW XML MIME attachment indicating Communication Waiting.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/3gpp-ims+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-3gpp version="1"
 alternative-service
  action
  call-waiting-indication

Comments:
Test System User Equipment

Establish a confirmed communication

INVITE
415 Unsupported Media Type

ACK


ETSI

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12 ETSI TS 186 022-2 V2.1.1 (2009-07)
TSS TP Reference Selection expression
CW/destination_UE CW_U01_007 4.5.5.3.3 PICS 2/4
Test purpose
The terminating User Equipment hold s current communication and accepts the waiting call.

Ensure that the user B User Equipment is able set the current active communication on hold and accepts the waiting
communication. After the communication with the previous waiting communication is active, the CW indication is
stopped.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/3gpp-ims+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-3gpp version="1"
 alternative-service
  action
  call-waiting-indication

Comments:
Test System User Equipment

Establish a confirmed communication (1)

INVITE (2)
100 Trying

180 Ringing (2)

INVITE (1, sendonly)

200 OK INVITE (1, recvonly)
ACK


200 OK INVITE (2)
...