关于112 eCall（EN 16072中定义的操作要求），本文件定义了对EN 16072和其他相关标准中定义的eCall规范的修改，以便能够为三轮和四轮车（以车辆为中心）的UNECE（UNECE ECE\/TRANS\/WP.29\/78\/Rev.4）车辆类别L2、L4、L5、L6、L7提供eCall。与现有的ECAL类别M1\/N1车辆的规定一样，这些规定是在OEM适合装备新车型的范例中指定的。本文件仅包括L2、L4、L5、L6和L7类三轮车和四轮车（以车辆为中心）的要求。注1:112 eCall范式涉及从车辆直接呼叫到最合适的PSAP（相比之下，第三方服务提供涉及在呼叫转发到PSAP之前中间第三方服务提供商的支持）。本规范仅涉及提供112 eCall或IMS-112-eCall，不提供eCall第三方服务的规范。注2:本文件中的某些要素需要进一步深入分析，才能在欧洲标准中实施。根据这些要素的发展现状，有理由将其纳入本文件，但进一步的评估和分析可能需要在实施欧洲标准之前进行修订。

In respect of 112-eCall (operating requirements defined in EN 16072), this document defines adaptations to eCall specifications defined in EN 16072 and other related Standards to enable the provision of eCall for tricycle and quadricycle vehicles (vehicle centred) UNECE (UNECE ECE/TRANS/WP.29/78/Rev.4) vehicle categories L2, L4, L5, L6, L7. As with the existing provisions for eCall for Category M1/N1 vehicles, these are specified within the paradigm of being OEM fit equipment supplied with new vehicles. This document includes only the requirements for Category L2, L4, L5, L6 and L7 Tricycles and Quadricycles (vehicle centred). NOTE 1 The 112-eCall paradigm involves a direct call from the vehicle to the most appropriate PSAP (Third party service provision by comparison, involves the support of an intermediary third party service provider before the call is forwarded to the PSAP). The specifications herein relate only to the provision of 112-eCall or IMS-112-eCall, and do not provide specifications for third party service provision of eCall. NOTE 2 Some of the elements of this document will require further in-depth analysis before they can be implemented in a European Standard. The current state of development on these elements justifies their inclusion in this document, but further assessment and analysis might require an amendment before implementation into a European Standard.