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                                | 支撑服务各方面的服务质量参数 |  
                                | ITU-T E.803建议书涉及服务质量(QoS)参数,这些参数可能是希望比较信息通信技术(ICT)服务的服务提供商(SP)在此类服务的非使用阶段表现的ICT服务的客户和用户最感兴趣和关注的,其次亦是监管者和服务提供商最感兴趣和关注的。涵盖特定于服务的性能的建议书通常适用于实际使用中的服务。然而,服务提供商提供的超出服务实际使用范围的ICT服务是用户感兴趣和关注的。关于服务及其特点的信息的质量和内容、服务提供商提供的合同条件、供应设施、文件以及与客户签订合同后的服务支持,都是用户可能关注的ICT服务未使用阶段的示例。同样,用户也关心服务性能的指标。本建议书确定了非使用阶段并列出了几个QoS参数,用户可从中进行选择,以评估提供商的表现。 |  |  
                    | 
 
                            
                                | Citation: | https://handle.itu.int/11.1002/1000/15000 |  
                                | Series title: | E series: Overall network operation, telephone service, service operation and human factors E.800-E.899: Quality of telecommunication services: concepts, models, objectives and dependability planning
 E.800-E.809: Terms and definitions related to the quality of telecommunication services
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                                | Approval date: | 2022-07-29 |  | Provisional name: | E.QoSNT |  | Approval process: | AAP |  
                                | Status: | In force |  
                                | Maintenance responsibility: | ITU-T Study Group 12 |  
                                | Further details: | Patent statement(s) Development history
 
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            | Title | Approved on | Download |  
                    | Radio fequency-level based single-number indicator for mobile network usefulness for a given range of applications | 2023 | here |  
                    | Technical Report on analysis of ITU-T F.930 | 2020 | here |  
                    | Identify call location for emergency service | 2020 | here |  
    
    
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