New capabilities in modern terminals and public communication networks, such as sharing multimedia, exchanging location and status information, and call transfer, could be used by ETS Users in cross-borders operations (i.e., between national networks). Supplement 68 to ITU-T Q-series Recommendations provides a technical report (TR) which aims at identifying how the use of such features by ETS Users could be problematic because of limitations in the International interoperability of ETS, beyond technology-to-technology priority mapping.
The TR comprises:
· An initial comprehensive list of ETS related functional requirements and capabilities analysed in the Report.
· Identification of resulting limitations of ETS interoperability:
o Interfaces between ENIs supporting the considered ETS services
o Foreseen interoperability problems due to current lack of support for such telecommunication services in ENIs with different technologies
The description of limitations includes both a technical analysis of standardised interfaces and use cases to illustrate the involved operations.