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TECHNICAL SPECIFICATION
Core Network and Interoperability Testing (INT);
VoLTE and ViLTE interconnect, interworking and
roaming test specification with QoS/QoE
TM
(3GPP Release 12)
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2 ETSI TS 103 397 V1.1.1 (2019-03)
Reference
DTS/INT-00130
Keywords
QoE, QoS, ViLTE, VoLTE
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3 ETSI TS 103 397 V1.1.1 (2019-03)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 9
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 9
3.3 Abbreviations . 9
4 General principles of interconnection of VoLTE-based networks . 11
4.0 Overview . 11
4.1 E2E scenarios in terms of interworking, interconnection and roaming . 12
4.2 Interconnection and roaming scenarios test selection description (Excel file) . 13
4.2.0 General . 13
4.2.1 First step- "Identification of the Networks" . 13
4.2.2 Second step - Selection Expression . 13
4.2.3 Third step- Access and End Devices Types . 15
4.2.4 Fourth step- activation . 16
4.2.5 Fifth step - Selection of roaming scenarios (not contained in the Excel file) . 17
5 IMS Roaming and Interconnection options (for information). 21
6 VoLTE interconnect and roaming tests . 24
6.1 Test Suite Structure (TSS) . 24
6.2 VoLTE Consideration . 24
6.2.1 EPC Consideration . 24
6.2.2 EPC Configuration Requirements . 25
6.3 Device and U/ISIM consideration . 25
6.3.1 Multi-Mode and Multi-band Terminal . 25
6.3.2 General Requirements for VoLTE Terminal . 25
6.3.2.0 Overview . 25
6.3.2.1 RAN Features . 26
6.3.2.2 IMS function on control plane . 26
6.3.2.3 IMS function on media plane . 26
6.3.2.4 Services Requirements . 26
7 Test purposes . 27
7.0 General . 27
7.1 Testing of SIP protocol requirements . 27
7.1.1 Test purposes for Basic call, Successful . 27
7.1.2 Test purposes for Basic call, DTMF Transport . 49
7.1.3 Test purposes for Basic call, Fax transmission . 50
7.1.4 SIP-I Tests . 53
7.1.5 Codec negotiation . 61
7.1.6 Resource Reservation . 65
7.1.7 Test purposes for SIP-SIP, Basic call, Unsuccessful . 67
7.1.7.1 NNI . 67
7.1.7.2 SIP-I . 73
7.1.8 Test purposes for Supplementary services . 78
7.1.8.1 Test purposes for OIP. 78
7.1.8.2 Test purposes for OIR . 83
7.2 Video Call . 86
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4 ETSI TS 103 397 V1.1.1 (2019-03)
7.2.1 Testing of SIP protocol requirements . 86
7.2.1.1 Test purposes for Basic call, Successful . 86
8 QoS/QoE/Test requirements. 91
8.0 General . 91
8.1 Call set-up time (post dialling delay) . 92
8.2 Listening speech quality . 92
8.2.1 Connections with one voice channel . 92
8.2.2 General aspects of Listening Speech Quality. 94
8.2.3 General aspects of voice channel test calls . 94
8.3 End-to-end audio delay . 97
8.4 End-to-end audio delay variation . 97
8.5 Early media call flow options and listening speech quality . 97
8.5.1 Introduction. 97
8.5.1.0 General . 97
8.5.1.1 Call Flow 1 . 98
8.5.1.2 Call Flow 2 . 99
8.5.2 Early media listening speech quality convergence quality test . 100
8.6 Fax Transmission . 101
8.7 ViLTE KPI . 101
Annex A (informative): Examples of Codecs which can be used in the case of
interworking/roaming . 104
Annex B (informative): Examples for grouped tests . 108
Annex C (informative): Bibliography . 110
History . 111
ETSI
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5 ETSI TS 103 397 V1.1.1 (2019-03)
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).
The test case list and test selection are contained in archive ts_103397v010101p0.zip which accompanies the present
document.
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
Voice over LTE (VoLTE) and Video over LTE (ViLTE) are services which deliver voice and video communication
over packet-based networks. VoLTE/ViLTE services can be provided by either traditional fixed or by mobile telecom
operators who have implemented the LTE technology as access technology to its core IP network.
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6 ETSI TS 103 397 V1.1.1 (2019-03)
1 Scope
The present document enables interested parties to verify the VoLTE and ViLTE interworking, interconnection and
roaming of networks by providing e2e scenarios based on an identification and selection of various criteria:
• Identification of the Networks
• Selection of Expression
• Determination of Access and end Device Types
• Selection of roaming scenarios
Additionally the present document provides a series of test suites for quality of service (QoS) and quality of experience
(QoE) based on KPI for voice quality measurements and KPI for voice quality measurements.
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+); Universal Mobile
Telecommunications System (UMTS); LTE; Inter-IMS Network to Network Interface (NNI)
(3GPP TS 29.165 Release 12)".
[2] ETSI TS 124 229: "Digital cellular telecommunications system (Phase 2+); 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 12)".
[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 the 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+); 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 12)".
[8] IETF RFC 5009 (September 2007): "Private header (P-Header) extension to the Session Initiation
Protocol (SIP) for authorization of Early Media".
[9] Recommendation ITU-T V.152 (November 2004): "Procedures for supporting Voice-Band Data
over IP Networks".
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7 ETSI TS 103 397 V1.1.1 (2019-03)
[10] Recommendation ITU-T T.38 (September 2010, prepublished): "Procedures for real-time Group 3
facsimile communication over IP networks".
[11] Recommendation ITU-T Q.1912.5: "SERIES Q: Switching and Signalling and Associated
Measurements and Tests. Specifications of signalling related to Bearer Independent Call Control
(BICC) Interworking between Session Initiation Protocol (SIP) and Bearer Independent Call
Control protocol or ISDN User Part".
[12] ETSI TS 183 036: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); ISDN/SIP interworking; Protocol specification".
[13] IETF RFC 4733: "RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals".
[14] IETF RFC 4028: "Session Timers in the Session Initiation Protocol (SIP)".
[15] ETSI TS 103 222-1 (V1.1.1): "Speech and multimedia Transmission Quality (STQ); Reference
benchmarking, background traffic profiles and KPIs; Part 1: Reference benchmarking, background
traffic profiles and KPIs for VoIP and FoIP in fixed networks".
[16] ETSI TS 101 563 (V1.3.1): "Speech and multimedia Transmission Quality (STQ);
IMS/PES/VoLTE exchange performance requirements".
[17] Recommendation ITU-T Q.543 (03-1993): "Digital exchange performance design objectives".
[18] 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".
[19] ETSI TS 102 250-2 (V2.6.1): "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".
[20] Recommendation ITU-T P.863 (09-2014): "Perceptual objective listening quality assessment".
[21] Recommendation ITU-T P.863.1 (09-2014): "Application guide for Recommendation ITU-T
P.863".
[22] Recommendation ITU-T P.501 (01-2012): "Test signals for use in telephonometry".
[23] ETSI ES 202 737 (V1.4.1): "Speech and multimedia Transmission Quality (STQ); Transmission
requirements for narrowband VoIP terminals (handset and headset) from a QoS perspective as
perceived by the user".
[24] ETSI ES 202 739 (V1.4.1): "Speech and multimedia Transmission Quality (STQ); Transmission
requirements for wideband VoIP terminals (handset and headset) from a QoS perspective as
perceived by the user".
[25] ETSI TS 101 585 (V1.2.1): "Core Network and Interoperability Testing (INT); IMS
interconnection tests at the Ic Interface; Test Suite Structure and Test Purposes (TSS&TP)".
[26] GSMA PRD IR.67: "DNS/ENUM Guidelines for Service Providers & GRX/IPX".
[27] ETSI ES 203 021-3 (V2.1.2): "Access and Terminals (AT); Harmonized basic attachment
requirements for Terminals for connection to analogue interfaces of the Telephone Networks;
Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017; Part 3: Basic
Interworking with the Public Telephone Networks".
[28] Recommendation ITU-T Q.4016 (August 2016): "Testing specification of call establishment
procedures based on SIP/SDP and H.248 for a real-time fax over IP service2".
[29] ETSI TS 126 114 (V13.6.0): "Universal Mobile Telecommunications System (UMTS); LTE; IP
Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction (3GPP
TS 26.114 version 13.6.0 Release 13)".
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8 ETSI TS 103 397 V1.1.1 (2019-03)
[30] ETSI TS 126 103 (V13.3.0):"Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); Speech codec list for GSM and UMTS
(3GPP TS 26.103 version 13.3.0 Release 13)".
[31] ETSI ES 202 667 (V1.1.5): "Speech and multimedia Transmission Quality (STQ); Audiovisual
QoS for communication over IP networks".
[32] Recommendation ITU-T P.910 (April 2008): "Subjective video quality assessment methods for
multimedia applications".
[33] Recommendation ITU-T P.911: "Subjective audiovisual quality assessment methods for
multimedia applications".
[34] IETF RFC 3761 (2004): "The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation
Discovery System (DDDS) Application (ENUM)".
[35] GSMA IR.65 V.28 (May 2018): "IMS Roaming and Interworking Guidelines".
[36] ETSI TS 123 002: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Network architecture (3GPP TS 23.002
version 12.7.0 Release 12)".
[37] ETSI TS 129 235 (V12.1.0): "Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); LTE; Interworking between SIP-I based
circuit-switched core network and other networks (3GPP TS 29.235 version 12.1.0 Release 12)".
[38] ETSI TS 123 231 (V12.0.0): "Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); SIP-I based circuit-switched core
network; Stage 2 (3GPP TS 23.231 version 12.0.0 Release 12)".
[39] ETSI TS 129 231 (V12.0.0): "Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); Application of SIP-I Protocols to Circuit
Switched (CS) core network architecture; Stage 3 (3GPP TS 29.231 version 12.0.0 Release 12)".
[40] ETSI TS 123 228 (V8.12.0): "Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS);
Stage 2 (3GPP TS 23.228 version 8.12.0 Release 8)".
[41] ETSI TS 129 162 (V12.7.0): "Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); LTE; Interworking between the IM CN
subsystem and IP networks (3GPP TS 29.162 version 12.7.0 Release 12)".
[42] ETSI TS 183 043: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IMS-based PSTN/ISDN Emulation; Stage 3 specification".
[43] ETSI TS 129 163 (V12.14.0): "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 version 12.14.0 Release 12)".
[44] Recommendation ITU-T Q.761: "Signalling System No. 7 - ISDN User Part functional
description".
[45] Recommendation ITU-T Q.764: "Q.764: Signalling System No. 7 - ISDN User Part signalling
procedures".
[46] ETSI TS 124 605 (V12.5.0): "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 version 12.5.0
Release 12)".
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9 ETSI TS 103 397 V1.1.1 (2019-03)
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 EG 202 057-2 (V1.3.2): "Speech and multimedia Transmission Quality (STQ); User related
QoS parameter definitions and measurements; Part 2: Voice telephony, Group 3 fax, modem data
services and SMS".
[i.2] ETSI TR 103 138 (V1.4.1): "Speech and multimedia Transmission Quality (STQ); Speech samples
and their use for QoS testing".
[i.3] ETSI EG 202 425 (V1.1.1): "Speech Processing, Transmission and Quality Aspects (STQ);
Definition and implementation of VoIP reference point".
3 Definition of terms, symbols and abbreviations
3.1 Terms
Void
3.2 Symbols
Void
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
rd
3GPP 3 Generation Partnership Project
ACM Accumulated Call Meter
ACR Anonymous Communication Rejection
ACR-CB Anonymous Call Rejection and Call Barring
AGCF Access Gateway Control Function
AMR Adaptative Multi-Rate
AMR-NB Adaptive Multi Rate - NarrowBand
AMR-WB Adaptive Multi Rate - Wide Band
ANM ANswer Message
APN Access Point Name
ATP Access Transport Parameter
ATS Abstract Test Suite
BCALL Basic CALL
BICC Bearer Independant Call Control
CB Communication Barring
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
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10 ETSI TS 103 397 V1.1.1 (2019-03)
CFNL Communication Forwarding Not Logged in
CFNR Communication Forwarding No Reply
CFU Communication Forwarding Unconditional
CONF CONFerence
CPG Call Progress Message
CS Circuit-Switched
CSCF Call Session Control Function
CSFB Circuit Switched Fall Back
CUG Closed User Group
CW Communication Waiting
DRX Discontinuous Reception
DTMF Dual Tone Multi Frequency
ECM EPS Connection Management
ECT Explicit Communication Transfer
ENUM Telephone Number Mapping
FFS For Further Study
GBR Gross Bit Rate
GRX/IPX GPRS Roaming eXchange/IP eXchange
GW GateWay
HEVC High Efficiency Video Coding
HLC High Layer Compatibility
HOLD communication HOLD
HPLMN Home Public Land Mobile Network
HPMN Home Public Mobile Network
IAM Initial Address Message
IBCF Interconnect Border Control Function
II-NNI Inter-IMS Network to Network Interface
IPTV Internal Protocol TeleVision
ISDN Integrated Services Digital Network
ISIM Inter-System Interface Mobility Management
IUT Implementation Under Test
IVR Interactive Voice Response
JPEG Joint Photographic Exper
...