ETSI TS 101 585 V2.1.1 (2018-02)

TECHNICAL SPECIFICATION
Core Network and Interoperability Testing (INT);
IMS interconnection tests at the Ic Interface;
TM
(3GPP Release 13);
Test Suite Structure and Test Purposes (TSS&TP)

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2 ETSI TS 101 585 V2.1.1 (2018-02)

Reference
RTS/INT-00134
Keywords
IMS, interconnection, PSTN, SIP, testing,
TSS&TP, UNI
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3 ETSI TS 101 585 V2.1.1 (2018-02)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 8
3 Definitions, conventions and abbreviations . 9
3.1 Definitions . 9
3.2 Conventions for representation of SIP/SDP information . 9
3.3 Abbreviations . 10
4 Test Suite Structure (TSS) . 12
5 Declarations . 12
5.1 Numbering Scheme . 12
5.2 Reference configuration . 12
5.3 Selection of End Devices . 13
6 Selection Expressions . 14
7 Test purposes . 16
7.0 Introduction . 16
7.1 Testing of SIP protocol requirements . 16
7.1.1 Test purposes for Basic call, Successful . 16
7.1.2 Codec negotiation . 48
7.1.3 Resource Reservation . 50
7.1.4 Test purposes for SIP-SIP, Basic call, Unsuccessful . 53
7.1.5 Test purposes for Supplementary services . 65
7.1.5.1 Test purposes for OIP. 65
7.1.5.2 Test purposes for OIR . 70
7.1.5.3 Test purposes for TIP . 73
7.1.5.4 Test purposes for TIR. 78
7.1.5.5 Communication Hold (HOLD) . 82
7.1.5.6 Communication Diversion (CDIV) . 99
7.1.5.6.1 Communication Forwarding Unconditional (CFU) . 99
7.1.5.6.2 Communication Forwarding Busy (CFB) . 114
7.1.5.6.3 Communication Forwarding No Reply (CFNR) . 129
7.1.5.6.4 Communication Forwarding Not Logged in (CFNL) . 144
7.1.5.6.5 Communication Deflection. 159
7.1.5.6.6 Call establishment when multiple diversions occur. 173
7.1.5.7 Conference (CONF) . 175
7.1.5.8 Anonymous Communication Rejection (ACR) and Communication Barring (CB) . 185
7.1.5.9 Closed User Group (CUG) . 187
7.1.5.10 Communication Waiting (CW) . 199
7.1.5.11 Explicit Communication Transfer (ECT) . 201
7.1.5.12 Malicious Communication Identification (MCID) . 210
7.1.5.13 Message Waiting Indication (MWI). 214
7.1.5.14 Completion of Communications to Busy Subscriber (CCBS), Completion of Communications by
No Reply (CCNR) . 216
7.1.6 Other PSTN services (SIP-I interworking) . 223
7.1.6.1 User-to-User Signalling (UUS) . 223
7.1.6.2 Subaddressing (SUB) . 239
7.1.6.3 Terminal Portability (TP) . 241
7.2 Number Portability . 243
7.3 Accounting . 244
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4 ETSI TS 101 585 V2.1.1 (2018-02)
7.4 Carrier Selection . 253
7.5 Emergency call . 258
7.6 SIP Support of Charging . 259
7.7 Quality of Service (optional) . 265
7.7.1 Delay Values . 265
7.7.2 Test purposes for Quality of Service test . 265
Annex A (informative): Test case list and test case selection . 270
A.0 Introduction . 270
A.1 First step - "Identification of the Networks" . 270
A.2 Second step - Selection Expression . 270
A.3 Third step - Access and End Devises Types . 271
A.4 Fourth step - activation . 272
Annex B (informative): Bibliography . 274
History . 276

ETSI
5 ETSI TS 101 585 V2.1.1 (2018-02)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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).
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.
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6 ETSI TS 101 585 V2.1.1 (2018-02)
1 Scope
The present document specifies the Test Suite Structure and Test Purposes (TSS&TP) for IMS interconnection tests at
the Ic Interface to verify the overall compatibility of SIP, ISDN and non-ISDN (PSTN) over the national or
international networks when using End Devices. The TSS&TP specification covers the procedures described in
ETSI TS 124 229 [2] and ETSI TS 129 165 [1] respectively.
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 129 165: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; Inter-IMS Network to Network Interface
(NNI) (3GPP TS 29.165 Release 13)".
[2] ETSI TS 124 229: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; IP multimedia call control protocol based on
Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP
TS 24.229 Release 13)".
[3] IETF RFC 4566 (2006): "SDP: Session Description Protocol".
[4] IETF RFC 3261 (2002): "SIP: Session Initiation Protocol".
[5] IETF RFC 3264 (2002): "An Offer/Answer Model with Session Description Protocol (SDP)".
[6] IETF RFC 3312 (2002): "Integration of Resource Management and Session Initiation Protocol
(SIP)".
[7] ETSI TS 124 607: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; Originating Identification Presentation (OIP)
and Originating Identification Restriction (OIR) using IP Multimedia (IM) Core Network (CN)
subsystem; Protocol specification (3GPP TS 24.607 Release 13)".
[8] ETSI TS 124 608: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Terminating Identification Presentation (TIP) and
Terminating Identification Restriction (TIR) using IP Multimedia (IM) Core Network (CN)
subsystem; Protocol specification (3GPP TS 24.608 Release 13)".
[9] 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 13)".
[10] ETSI TS 124 605: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Conference (CONF) using IP Multimedia (IM) Core
Network (CN) subsystem; Protocol specification (3GPP TS 24.605 Release 13)".
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7 ETSI TS 101 585 V2.1.1 (2018-02)
[11] ETSI TS 124 629: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; Explicit Communication Transfer (ECT)
using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.629
Release 13)".
[12] ETSI TS 124 611: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Anonymous Communication Rejection (ACR) and
Communication Barring (CB) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol
specification (3GPP TS 24.611 Release 13)".
[13] ETSI TS 124 654: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Closed User Group (CUG) using IP Multimedia (IM)
Core Network (CN) subsystem, Protocol Specification (3GPP TS 24.654 Release 13)".
[14] ETSI TS 124 642: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Completion of Communications to Busy Subscriber
(CCBS) and Completion of Communications by No Reply (CCNR) using IP Multimedia (IM)
Core Network (CN) subsystem; Protocol specification (3GPP TS 24.642 Release 13)".
[15] ETSI TS 124 615: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; Communication Waiting (CW) using IP
Multimedia (IM) Core Network (CN) subsystem; Protocol Specification (3GPP TS 24.615
Release 13)".
[16] ETSI TS 124 606: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Message Waiting Indication (MWI) using IP
Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.606
Release 13)".
[17] ETSI TS 124 610: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Communication HOLD (HOLD) using IP
Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.610
Release 13)".
[18] ETSI TS 124 616: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Malicious Communication Identification (MCID)
using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.616
Release 13)".
[19] ETSI TS 129 658: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; SIP Transfer of IP Multimedia Service Tariff
Information; Protocol specification (3GPP TS 29.658 Release 13)".
[20] ETSI TS 124 628: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; Common Basic Communication procedures
using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.628
Release 13)".
[21] IETF RFC 5009 (September 2007): "Private Header (P-Header) Extension to the Session Initiation
Protocol (SIP) for Authorization of Early Media".
[22] Recommendation ITU-T V.152 (09-2010): "Procedures for supporting voice-band data over IP
networks".
[23] Recommendation ITU-T T.38 (11-2015): "Procedures for real-time Group 3 facsimile
communication over IP networks".
[24] Recommendation ITU-T Q.1912.5: "Interworking between Session Initiation Protocol (SIP) and
Bearer Independent Call Control protocol or ISDN User Part".
[25] ETSI TS 183 036: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); ISDN/SIP interworking; Protocol specification".
[26] IETF RFC 4733: "RTP Payload for DTMF Digits, Telephony Tones, and Telephony Signals".
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8 ETSI TS 101 585 V2.1.1 (2018-02)
[27] IETF RFC 4028: "Session Timers in the Session Initiation Protocol (SIP)".
[28] Recommendation ITU-T Q.4016 (08-2016): "Testing specification of call establishment
procedures based on SIP/SDP and ITU-T H.248 for a real-time fax over IP service".
[29] ETSI TS 101 563 (V1.3.1): "Speech and multimedia Transmission Quality (STQ);
IMS/PES/VoLTE exchange performance requirements".
[30] ETSI ES 202 765-2 (V1.2.1): "Speech and multimedia Transmission Quality (STQ); QoS and
network performance metrics and measurement methods; Part 2: Transmission Quality Indicator
combining Voice Quality Metrics".
[31] Recommendation ITU-T Q.543: "Digital exchange performance design objectives".
[32] ETSI TS 102 250-2: "Speech and multimedia Transmission Quality (STQ); QoS aspects for
popular services in mobile networks; Part 2: Definition of Quality of Service parameters and their
computation".
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.
[i.1] ETSI EN 300 403-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling
System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control;
Part 1: Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".
[i.2] ISO/IEC 9646 (1994): "Information technology -- Open Systems Interconnection -- Conformance
testing methodology and framework".
[i.3] ETSI TR 102 775 (V1.5.1): "Speech and multimedia Transmission Quality (STQ); Guidance on
objectives for Quality related Parameters at VoIP Segment-Connection Points; A support to NGN
transmission planners".
[i.4] Recommendation ITU-T Q.1902.2 (07-2001): "Bearer Independent Call Control protocol
(Capability Set 2) and Signalling System No.7 ISDN User Part: General functions of messages and
parameters".
[i.5] Recommendation ITU-T G.826: "End-to-end error performance parameters and objectives for
international, constant bit-rate digital paths and connections".
[i.6] ETSI TS 183 043: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IMS-based PSTN/ISDN Emulation; Stage 3 specification".
[i.7] Recommendation ITUT-T Q.76: "Service procedures for Universal Personal Telecommunication -
Functional modelling and information flows".
[i.8] Recommendation ITUT-T Q.764: "Signalling System No. 7 - ISDN User Part signalling
procedures".
[i.9] ETSI TS 129 163: "Digital cellular telecommunications system (Phase 2+) (GSM); Universal
Mobile Telecommunications System (UMTS); LTE; Interworking between the IP Multimedia
(IM) Core Network (CN) subsystem and Circuit Switched (CS) networks (3GPP TS 29.163
Release 10)".
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9 ETSI TS 101 585 V2.1.1 (2018-02)
3 Definitions, conventions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Adjacent SIP Node (ASN): SIP node (e.g. SIP Proxy or Back-to-Back User Agent or the SIP side of an IWU) that has
established a direct trust relation (association) with Incoming or Outgoing IWU entities
NOTE: The SIP Proxy and Back-to-Back User Agent are defined in accordance with IETF RFC 3261 [4].
Basic Call Control (BCC): signalling protocol associated with the DSS1 - ISDN Basic Call control procedures of
ETSI EN 300 403-1 [i.1]
Incoming Interworking Unit (I-IWU): physical entity, (which can be combined with a BICC ISN or ISUP exchange)
that terminates incoming calls using SIP and originates outgoing calls using the BICC or ISUP protocols
incoming or outgoing: direction of a call (not signalling information) with respect to a reference point
incoming SIP or BICC/ISUP (network): network, from which the incoming calls are received, that uses the SIP or
BICC/ISUP protocol (without the term "network", it simply refers to the protocol)
Outgoing Interworking Unit (O-IWU): physical entity, (which can be combined with a BICC ISN or ISUP exchange)
that terminates incoming calls using BICC or ISUP protocols and originates outgoing calls using the SIP
outgoing SIP or BICC/ISUP (network): network, to which the outgoing calls are sent, that uses the SIP or
BICC/ISDN protocol
NOTE: Without the term "network", it simply refers to the protocol.
SIP precondition: mechanism for reserving bearer resources that is required for certain access technologies
NOTE: As defined in IETF RFC 3312 [6].
test purpose: non-formal test description, mainly using text
NOTE: TSIs test description can be used as the basis for a formal test specification (e.g. Abstract Test Suite in
TTCN). See ISO/IEC 9646 [i.2].
3.2 Conventions for representation of SIP/SDP information
1) All letters of SIP method names are in capital.
EXAMPLE 1: INVITE, INFO.
2) SIP header fields are identified by the unabbreviated header field name as defined in the relevant RFC,
including capitalization and enclosed hyphens but excluding the following colon.
EXAMPLE 2: To, From, Call-ID.
3) Where it is necessary to refer with finer granularity to components of a SIP message, the component concerned
is identified by the ABNF rule name used to designate it in the defining RFC (generally 25/IETF
RFC 3261 [4]), in plain text without surrounding angle brackets.
EXAMPLE 3: Request-URI, the user info portion of a sip: URI.
4) URI types are represented by the lower-case type identifier followed by a colon and the abbreviation "URI"
EXAMPLE 4: sip: URI, tel: URI.
5) SIP provisional responses and final responses other than 2XX are represented by the status code followed by
the normal reason phrase for that status code, with initial letters capitalized.
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10 ETSI TS 101 585 V2.1.1 (2018-02)
EXAMPLE 5: 100 Trying, 484 Address Incomplete.
6) Because of potential ambiguity within a call flow about which request a 200 OK final response answers, 200
OK is always followed by the method name of the request.
EXAMPLE 6: 200 OK INVITE, 200 OK PRACK.
7) A particular line of an SDP session description is identified by the two initial characters of the line -- that is,
the line type character followed by "="
EXAMPLE 7: m=line, a=line.
8) Where it is necessary to refer with finer granularity to components of a session description, the component
concerned is identified by its rule name in the ABNF description of the SDP line concerned, delimited with
angle brackets.
EXAMPLE 8: The and components of the m= line.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACR Anonymous Communication Rejection
ACR-CB Anonymous Call Rejection and Call Barring
AS Application Server
ATP Access Transport Parameter
ATS Abstract Test Suite
BC Bearer Capability
BCALL Basic CALL
CB Communication Barring
CC Completion of Completion
CCBS Completion of Communications to Busy Subscriber
CCNR Completion of Communications by No Reply
CD Communication Deflection
CDIV Communication DIVersion
CDP Charging Determinating Point
CDR Communication Data Record
CFB Communication Forwarding Busy
CFNL Communication Forwarding Not Logged in
CFNR Communication Forwarding No Reply
CFU Communication Forwarding Unconditional
CN Core Network
COLP Connected Line Presentation
COLR COnnected Line Restriction
CONF Conference
CS Circuit Switched
CUG Closed User Group
CUG-OA Closed User Group Outgoing Access
CW Communication Waiting
DTMF Dual Tone Multi-Frequency
ECT Explicit Communication Transfer
FFS For Further Study
GSM Global System for Mobile Communications
GW GateWay
HLC High layer Compatibility
HOLD Communication Hold
IA In coming Access allowed
IBCF Interconnection Boarder Control Function
ICB Incoming Call Barring
IMS IP Multimedia core network Subsystem
IP Internet Protocol
ISDN Integrated Services Digital Network
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11 ETSI TS 101 585 V2.1.1 (2018-02)
ISUP ISdn User Part
IUT Implementation Under Test
LLC Low Layer Comaptibility
MCID Malicious Communication Identification
MGCF Media Gateway Control Function
MWI Message Waiting Indication
NDUB Network Determined User Busy
OA Outgoing Access
OIP Originating Identification Presentation
OIR Originating Identification presentation Restriction
PBX Private Branch eXchage
PDP Programmable Data Processor
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXrtra Information
PLMN Public Land Mobile Network
PSTN Public Switched Telephone Network
PT Payload Type
PTY ParTY
QoS Quality of Service
RTP Realtime Transport Protocol
SDP Session Description Protocol
SE Selection Expression
SIP Session Initiation Protocol
SIP-I SIP containing ISUP
SS Supplementary Sercice
SUB SUB addressing
TIP Terminating Identification Presentation
TIR Terminating Identification Restriction
TP Test Purpose
TSS Test Suite Structure
TSS&TP Test Suite Structure and Test Purposes
UA User Agent
UAC User Agent Client
UAS User Agent Server
UDUB User Determined User Busy
UE User Equipment
UE-A User Equipment A side
UE-B User Equipment B side
URI Uniform Resource Identifier
USI User Service Information
UUS User to User Service
XML eXtensible Markup Language
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12 ETSI TS 101 585 V2.1.1 (2018-02)
4 Test Suite Structure (TSS)
BCALL successful SS_bcall_xxx
Codec_Negotiation SS_codec_xxx
Resource_Reservation SS_resource_xxx
unsuccessful SS_unsucc_xxx
SIP-SIP Service OIP SS_oip_xxx
OIR SS_oir_xxx
TIP SS_tip_xxx
TIR SS_tir_xxx
HOLD SS_hold_xxx
CFU SS_cfu_xxx
CFB SS_cfb_xxx
CFNR SS_cfnr_xxx
CFNL SS_cfnl_xxx
CD SS_cd_xxx
CONF SS_conf_xxx
ACR-CB SS_acr-cb_xxx
CUG SS_cug_xxx
CW SS_cw_xxx
ECT SS_ect_xxx
MCID SS_mcid_xxx
MWI SS_mwi_xxx
CC SS_cc_xxx
SIP-I UUS SS_uus_xxx
SUB SS_sub_xxx
TP SS_tp_xxx
NubP SS_NP_xxx
ACCOUNTING SS_acc _xxx
CS SS_csel_xxx
EmC SS_ecall_xxx
SIP_charging SS_sipc_xxx
SIP-SIP/QoS SS_qos_xxx
5 Declarations
5.1 Numbering Scheme
FFS.
5.2 Reference configuration
This reference configuration depicted in figure 5.2-1 shall be used to perform an interconnection test between two
network operators. Here is depicted the reference point to observe the message flow at the 'Ic' interface between the two
networks (in the Test purposes mentioned 'Interconnection Interface') one for a single operator and the possible set of
end devices used to perform the Test Purposes.
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13 ETSI TS 101 585 V2.1.1 (2018-02)

Figure 5.2-1: Reference configuration for the interconnection test
5.3 Selection of End Devices
With the specified Test Purposes in the present document, the compatibility between the interconnected networks and
the used end devices shall be assured. Each Test Purpose shall be performed by using a physical end device to assure
the end-to-end compatibility between the two interconnected networks. This is highly recommended due to the fact that
the impact from an end device to another end device is important and will be marginal compensated by the network.
Which Test Purposes are possible to perform depends on the types of end devices used in the network. The table 5.3-1
gives an overview of end devices.
The green highlighted element in the table represents the mandatory type of end devices used in the test.
The yellow highlighted elements in the table represents the optional type of end devices used in the test.
Table 5.3-1: Overview of end devices
Type of Network B
End devices
Network A SIP POTS ISDN GSM VoHSPA VoLTE PSTN
SIP
POTS
ISDN
GSM
VoHSPA
VoLTE
PSTN
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14 ETSI TS 101 585 V2.1.1 (2018-02)
6 Selection Expressions
Table 6-1 is used to select the optional Test Purposes for the compatibly test between network operator A and network
operator B.
• Network operator 1 is in the role of Network A, Network operator 2 is in the role of Network B.
In case of Repeat this test in reverse direction mentioned in the Comment line in the Test Purpose.
• Network operator 2 is in the role of Network A, Network operator 1 is in the role of Network B.
In each Test Purpose is determined in the field SELECTION EXPRESSION whether the selection expression applies
and the Test Purpose shall be performed. It has to be decided for which role the Test purpose is applicable (Support
Network A, Support Network B).
Before the start of the test, the table shall be filled out (yes/no) so the operators reply to the questions in table 6-1. This
table can be used as a PICS form as used in a conformance test.
Table 6-1: Selection expression applicable in the Test Purposes
SELECTION EXPRESSION: Support Support
Network A Network B
Network capabilities
SE 1: The originating network (Network A) sends the P-Charging-Vector
header?
SE 2: The originating network (Network A) sends a subset of parameters in
the P-Charging-Vector header?
SE 3: The P-Early-Media header is supported?
SE 4: Overlap procedure using multiple INVITE method is supported?
SE 5: Overlap sending using in-dialog method is supported?
SE 6: The Network supports the PSTN XML schema?
SE 7: The resource reservation procedure is supported?
SE 8: Does the network perform the "Fall back" procedure (PSTN or
MGCF)?
SE 9: The network is untrusted?
SE 10: Originating network does not have a number portability data base, the
number portability look up is done in the interconnected network?
SE 11: The network supports the REFER method?
SE 12: The Network supports the 3 party call control procedure (REFER
interworking)?
SE 13: The Number Portability is supported?
SE 14: Carrier Selection is performed?
SE 15: The Network is a Long distance carrier?
SE 16: SIP Support of Charging is supported?
SE 17: The interworking ISUP - SIP I is performed in the network?
SE 17a: The Network supports the Session Timers in the Session Initiation
Protocol (SIP)?
SE 17b: The Network supports the forking of INVITE requests?
Supplementary services
SE 18: The network supports the Originating Identification Presentation
(OIP)?
SE 19: The network supports the "Special arrangement" procedure for the
originating user?
SE 20: The network supports the Originating Identification Restriction (OIR)?
SE 21: The Network supports the Terminating Identification Presentation
(TIP)?
SE 22: The network supports the "Special arrangement" procedure for the
terminating user?
SE 23: The Network supports the Terminating Identification Restriction (TIR)?
SE 24: The Network supports the session HOLD procedure?
SE 25: The network supports Communication Forwarding Unconditional
(CFU)?
SE 26: The network supports Communication Forwarding Busy (CFB)?
SE 27: The network supports Communication Forwarding No Reply (CFNR)?
ETSI
15 ETSI TS 101 585 V2.1.1 (2018-02)
SELECTION EXPRESSION: Support Support
Network A Network B
SE 28: The Network supports Communication Forwarding Not Logged in
(CFNL)?
SE 29: The Network supports Communication Deflection?
SE 30: The Network supports the CDIV Notification procedure?
SE 31: The Network supports conference (CONF)?
SE 32: The Network supports the Communication Barring procedure (CB) -
(Black list for incoming calls)?
SE 33: The Network supports the Anonymous Communication Rejection
(ACR)?
SE 34: The Network supports the Closed User Group (CUG)?
SE 35: The Network supports the Communication Waiting (CW) service?

SE 36: The Network supports the T timer?
AS-CW
SE 37: The Network supports Explicit Communication Transfer (ECT)?
SE 38: The network supports Malicious Communication Identification
(MCID)?
SE 39: The Network supports Message Waiting Indication (MWI)?
SE 40: The Network supports Completion of Communications to Busy
Subscriber (CCBS)?
SE 41: The Network supports Completion of Communications by No Reply
(CCNR)?
Terminal capabilities
SE 42: The End device requires the resource reservation?
SE 43: The End device supports Fax transmission via G.711 codec?
SE 44: The End device supports Fax transmission via V.152 codec?
SE 45: The End device supports Fax transmission via m-line T.38 codec?
SE 46: A SIP end device is used supporting an ISDN user equipment and the
PSTN XML Schema is used?
SE 47: End device is located in the PSTN or PLMN?
SE 48: The terminating UE supports the from-change tag procedure and
sends a second user identity in an UPDATE request after the
dialogue is confirmed?
SE 49: The end device performs ECT using the 'Blind/assured transfer'?
SE 50: The end device performs ECT using the 'Consultative transfer'?
SE 51: The end device supports the Resource reservation procedure?
PSTN/PLMN Supplementary services
SE 52: CLIP/CLIR is supported in the PSTN/PLMN part of the network?
SE 52A: The network supports the "Special arrangement" procedure for the
originating user?
SE 53: COLP/COLR is supported in the PSTN/PLMN part of the network?
SE 53A: The network supports the "Special arrangement" procedure for
the terminating user?
SE 54: HOLD is supported in the PSTN/PLMN part of the network?
SE 55: CDIV unconditional is supported in the PSTN/PLMN part of the
network?
SE 55A: CDIV busy is supported in the PSTN/PLMN part of the network?
SE 55B: CDIV no reply is supported in the PSTN/PLMN part of the
network?
SE 55C: CDIV Mobile subscriber not reachable is supported in the
PSTN/PLMN part of the network?
SE 55D: CDIV call deflection is supported in the PSTN/PLMN part of the
network?
SE 56: CONF/3PTY is supported in the PSTN/PLMN part of the network?
SE 57: ACR is supported in the PSTN/PLMN part of the network?
SE 58: CUG is supported in the PSTN/PLMN part of the network?
SE 59: CW is supported in the PSTN/PLMN part of the network?
SE 60: ECT is supported in the PSTN/PLMN part of the network?
SE 61: MCID is supported in the PSTN/PLMN part of the network?
SE 61A: Call Completion is supported in the PSTN/PLMN part of the network?
SE 62: SUB is supported in the PSTN/PLMN part of the network?
SE 63: UUS is supported in the PSTN/PLMN part of the network?
SE 64: TP is supported in the PSTN/PLMN part of the network?

ETSI
16 ETSI TS 101 585 V2.1.1 (2018-02)
7 Test purposes
7.0 Introduction
The application usage procedures in the ATS shall be compliant with ETSI TS 129 165 [1], ETSI TS 124 229 [2] and
IETF RFC 3261 [4]. The validation of the registration procedure is out of scope of the present document.
7.1 Testing of SIP protocol requirements
7.1.1 Test purposes for Basic call, Successful
Test case number SS_bcall_001
Test case group BCALL/successful
Reference [4]
SELECTION EXPRESSION
Test purpose Basic call normal call clearing from the called user.

Ensure that call establishment is performed correctly. In the active call state
ensure the property of speech. The call is released from the called user.
Configuration
SIP Parameter
Message flow
SIP (Network A) Interconnection Interface SIP (Network B)
INVITE
100 Trying
180 Ringing
200 OK INVITE
ACK
Communication
BYE
200 OK BYE
Comments Establish a communication from network A to Network B
Check: Ensure the property of speech.
Check: Are the media streams terminated after the 200 OK BYE was sent?
Repeat this test in reverse direction.
Repeat this test with all chosen end devices.

ETSI
17 ETSI TS 101 585 V2.1.1 (2018-02)
Test case number SS_bcall_002
Test case group BCALL/successful
Reference [4]
SELECTION EXPRESSION
Test purpose Basic call normal call clearing from the calling user.

Ensure that call establishment is performed correctly. In the active call state
ensure the property of speech. The call is released from the calling user.
Configuration
SIP Parameter
Message flow
SIP (Network A) Interconnection Interface SIP (Network B)
INVITE
100 Trying
180 Ringing
200 OK INVITE
ACK
Communication
BYE
200 OK BYE
Comments Establish a communication from network A to Network B
Check: Ensure the property of speech.
Check: Are the media streams terminated after the 200 OK BYE was sent?
Repeat this test in reverse direction.
Repeat this test with all chosen end devices.

Test case number SS_bcall_003
Test case group BCALL/successful
Reference 8/ [1]
SELECTION EXPRESSION
Test purpose Request line in the INVITE.

Ensure that the Request line in the INVITE contains in the user part the
telephone number of the destination user equipment formatted as a 'tel' URI in
the global number format and the host portion is set to the host name of the
interconnected network. The user URI parameter is present and set to 'phone'.
Configuration
SIP Parameter INVITE
Request line Address of user B @ network B;user=phone
Message flow
SIP (Network A) Interconnection Interface SIP (Network B)
INVITE
Apply post test routine
Comments Establish a communication from network A to Network B
Check: The user part is in the format of a tel URI in global number format.
Check: The host portion is set to the host name of the interconnected network.
Check: The user parameter is set to phone.
Repeat this test in reverse direction.
Repeat this test with all chosen end devices.

ETSI
18 ETSI TS 101 585 V2.1.1 (2018-02)
Test case number SS_bcall_004
Test case group BCALL/successful
Reference 5.10/ [2]
Testspec Reference
SELECTION EXPRESSION SE 1
Test purpose P-Charging-Vector header in the INVITE.

Ensure that the P-Charging-Vector header is present in the INVITE establishes a
communication between a user of network A and a user of network B and the
'icid-value' and the 'orig-ioi' parameter is present.
Configuration
SIP Parameter INVITE
P-Charging-Vector: icid-value; orig-ioi
Message flow
SIP (Network A) Interconnec
...