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Testing Task Force T010:
Network Interoperability Test Description for emergency services over VoLTE

Who we are:

 

Team leader:
Team Members:

What we do

This TTF will create network interoperability test descriptions and test purposes for emergency services (Emergency call and NG eCall) over VoLTE between different network domains and check correctness of internal behaviour.
ETSI this means the production of a document covering the dynamic interworking review (Abstract Test Suite from existing Test Descriptions and Test purposes). The result would be a complete set of monitoring test suite for emergency interworking over all relevant interfaces.
For more details, see our Terms of Reference.

Why we do it

In early implementations, emergency calls for VoLTE were handled by circuit switch fallback (CSFB), in which the devices fall back to overlapping 2G/3G access.
The best alternative to deliver emergency call over LTE depends on the radio coverage of the LTE network and the overlapping 2G/3G accesses. As the 4G/5G network is gradually built out and it provides equal coverage as 2G/3G networks, it will be better to handle the emergency calls in the 4G/5G network, as the VoLTE service will be more reliable and faster than the CSFB service. It should also be noted that mobile network operators are currently starting to take 3G networks out of service which may weaken the reliability of the CSFB service. Therefore, development of interoperability test specifications should be done to support vendors and operators.

How we do it

The leading body is TC INT. Any reports, drafts and final deliverables are discussed with and presented to TC INT.

Deliverables

Work item code / Standard number Working title Expected date for publication
DTS/INT-00182
ETSI TS 103 795-1 		Network Interoperability Test Description for emergency services over VoLTE; Part 1: Test Purposes 15/01/2024
DTS/INT-00183
ETSI TS 103 795-2 		Network Interoperability Test Description for emergency services over VoLTE; Part 2: Test Descriptions 15/01/2024
DTS/INT-00184
ETSI TS 103 795-3 		Network Interoperability Test Description for emergency services over VoLTE; Part 3: ATS&PIXIT 15/01/2024


Time plan

          Task / Milestone                                                                                        Target date                                     
Start of work  09-2022
Project Management 09-2022 to 11-2023
Development of VoLTE emergency network interoperability test description over 4G/early 5G in physical/virtual environments; Part 1: Test Purposes
 09-2022 to 11-2023
Development of VoLTE emergency network interoperability test description over 4G/early 5G in physical/virtual environments; Part 2: Test Descriptions  09-2022 to 11-2023
Progress Report A to be approved at TC INT
  D1 and D2 skeleton draft available 		11-2022
Development of VoLTE emergency network interoperability test description over 4G/early 5G in physical/virtual environments; Part 3: ATS&PIXITS 03-2023 to 11-2023
Progress Report B to be approved at TC INT
 D1 and D2 early draft, D3 skeleton draft available 		03-2023
Progress Report C to be approved at TC INT
 D1 and D2 stable draft and D3 early draft available 		06-2023
Final Report and final drafts D1, D2 and D3 to be approved at TC INT 11-2023
Deliverables published, TTF closed  01-2024

 

How to contact us

To contact us, please send an email to us.

This information is based upon STF working assumptions.

The views expressed do not necessarily represent the position of ETSI in this context.