Summary

This ITU-T Recommendation is only applicable to international leased circuits that are supported by a data transmission system. The requirements described in this ITU-T Recommendation should ensure that an international leased circuit meets performance limits and is fully tested prior to introduction into service.

The Bringing-Into-Service tests described in this ITU-T Recommendation should ideally include periods of normal industrial activity to be representative of typical network conditions. This ITU-T Recommendation has been developed to be consistent with ITU-T Recommendation M.1370 that describes the Bringing-Into-Service of international data transmission systems.

ITU-T Recommendation M.1385 covers maintenance issues for international leased circuits that are supported by a data transmission system maintained in accordance with ITU-T Recommendation M.1375.

This ITU-T Recommendation addresses the Bringing-Into-Service requirements of leased circuits with a PDH digital presentation at Customers' premises. Another ITU-T Recommendation is being developed for Bringing-Into-Service and Maintenance procedures for SDH leased circuits.

For leased circuits with an analogue presentation, the Bringing-Into-Service procedures given in ITU-T Recommendation M.1050 apply, with performance achievement in accordance with ITU-T Recommendations M.1020, M.1025 or M.1040 as appropriate.