IMS Testing

Introduction

The Internet Protocol (IP) Multimedia Subsystem (IMS) constitutes a major step in the evolution of telecommunication networks and its convergence with the Internet.
IMS does not standardise specific applications or services, but provides a platform and architecture framework for providing services across wireless as well as wireline terminals.

ETSI, as one of the partners of the Third Generation Partnership Project (3GPP™) and in coordination with other global organizations and fora active in this area, plays a key role in enabling of a market for this networking technology by developing a variety of test specifications for IMS core networks and organizing interoperability events. IMS network testing is an essential element to ensure the successful operational delivery of the IMS enabled networks.

IMS network interoperability testing assess the ability of  two distinct IMS networks to provide basic services such as basic Voice over IP (VoIP) call and instant messaging as well more sophisticated services that require the use of an Application Server (AS), such as Multi-Media Telephony (MMTel) or presence. Of interest also is the ability to provide such services from an IMS core to a legacy PSTN network and vice versa.

In ETSI's interoperability testing IMS network entities are connected, driven and observed at standardized interfaces such as Gm, Mw, Ic, and ISC. 
IMS conformance and network integration testing assesses either a complete IMS core network or a subset of its components in isolation. For this purpose ETSI has developed and is maintaining numerous test specifications suited for automated test execution based on testing technologies such as TPLan and TTCN-3.

Our Role & Activities

TC INT have the responsibility to develop Core Network test specifications on interoperability, conformance, performance and security based on 3GPP and NTECH specifications. TC INT initiate interoperability events related to Core Networks and workshops.

TC INT members meet four times a year to discuss and approve test specifications which are written by its members and experts. The specifications are validated during conformance and interoperability events which gather organizations across the industry.

TC INT members are representatives from industry and research institutes who collect requirements from the operators, vendors and manufactures and testing tool companies to ensure time-to-market standards.

Standards

The following is a list of the 20 latest published ETSI standards on IMS testing.

A full list of related standards in the public domain is accessible via the ETSI standards search. Via this interface you can also subscribe for alerts on updates of ETSI standards.

For work in progress see the ETSI Work Programme on the Portal.

Standard No. Standard title.
TS 101 553-1 Core Network and Interoperability Testing (INT); Testing of the IBCF requirements; (3GPP Release 12); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 101 553-2 Core Network and Interoperability Testing (INT); Testing of the IBCF requirements; (3GPP Release 12); Part 2: Test Suite Structure and Test Purposes (TSS&TP)
TS 103 289-1 Core Network and Interoperability Testing (INT); Diameter Conformance testing for Cx and Dx interfaces; (3GPPTM Release 10); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 103 289-2 Core Network and Interoperability Testing (INT); Diameter Conformance testing for Cx and Dx interfaces; (3GPPTM Release 10); Part 2: Test Suite Structure (TSS) and Test Purposes (TP)
TS 103 289-3 Core Network and Interoperability Testing (INT); Diameter Conformance testing for Cx and Dx interfaces; (3GPPTM Release 10); Part 3: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) pro forma specification
TS 103 374-3 Core Network and Interoperability Testing (INT); Diameter Conformance testing for Rf/Ro interface; (3GPPTM Release 10); Part 3: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) pro forma specification
TS 102 710-1 Core Network and Interoperability Testing (INT); Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks; Conformance Test Specification; (3GPPTM Release 10); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 102 710-2 Core Network and Interoperability Testing (INT); Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks; Conformance Test Specification; (3GPPTM Release 10); Part 2: Test Suite Structure and Test Purposes (TSS&TP)
TS 103 374-2 Core Network and Interoperability Testing (INT); Diameter Conformance testing for Rf/Ro interface; (3GPPTM Release 10); Part 2: Test Suite Structure (TSS) and Test Purposes (TP)
TS 186 001-5 Core Network and Interoperability Testing (INT); Network Integration Testing between SIP and ISDN/PSTN network signalling protocols; Part 5: Test Suite Structure and Test Purposes (TSS&TP) for Network Integration Tests between ISDN-ISDN and ISDN-PSTN over SIP II NNI / SIP-I NNI
TS 186 001-1 Core Network and Interoperability Testing (INT); Network Integration Testing between SIP and ISDN/PSTN network signalling protocols; Part 1: Test Suite Structure and Test Purposes (TSS&TP) for SIP-ISDN
TS 103 374-1 Core Network and Interoperability Testing (INT); Diameter Conformance testing for Rf/Ro interface; (3GPPTM Release 10); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 186 007-1 Core Network and Interoperability Testing (INT); Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPPTM Release 10); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 186 007-2 Core Network and Interoperability Testing (INT); Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPPTM Release 10); Part 2: Test Suite Structure and Test Purposes (TSS&TP)
TS 186 022-1 Core Network and Interoperability Testing (INT); Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPPTM Release 10); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 186 022-2 Core Network and Interoperability Testing (INT); Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPPTM Release 10); Part 2: Test Suite Structure and Test Purposes (TSS&TP)
TS 186 010-1 Core Network and Interoperability Testing (INT); Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPP Release 10); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 186 010-2 Core Network and Interoperability Testing (INT); Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPP Release 10); Part 2: Test Suite Structure and Test Purposes (TSS&TP)
TS 186 006-1 Core Network and Interoperability Testing (INT); Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPP Release 10); Part 1: Protocol Implementation Conformance Statement (PICS)
TS 186 006-2 Core Network and Interoperability Testing (INT); Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPP Release 10); Part 2: Test Suite Structure and Test Purposes (TSS&TP)