共找到 150 条与 VBDoIP emulation service 相关的标准，共 10 页
De-jitter buffers have a major effect on voice and data transmission quality in telecommunication networks. They affect the three service categories of public switched telephone network/integrated service digital network (PSTN/ISDN) voice@ voiceband data (due to PSTN modem calls) and ISDN circuit mode data. Since the requirements for the settings of de-jitter buffers differ for different services@ this Recommendation describes the activation and mode switching procedures of de-jitter buffers@ including the requirement for in-band tone activating and other control mechanisms. It is assumed that the clock accuracy of all elements involved is sufficiently high for application of this Recommendation. This Recommendation covers de-jitter buffer usage in circuit-to-IP media gateways@ such as residential@ access or trunking gateways in the context of the next generation network/internet protocol multimedia subsystem (NGN/IMS). The notion of circuit relates to a PSTN analogue line or an ISDN 1??64 bearer channel.
Procedures for control of de-jitter buffers used in PSTN-IP gateways carrying voiceband data (Study Group 16)
去抖动缓冲器和回声消除器对电信网络中的语音和数据传输质量有重大影响。它们影响PSTN/ISDN语音、语音频带数据（由于PSTN调制解调器和传真呼叫）和ISDN电路模式数据这三个服务类别。由于不同服务对去抖动缓冲器设置的要求不同，本文档描述了去抖动缓冲器和回声消除器的激活和模式切换程序，包括带内音激活和其他控制机制的要求。 假设所有相关元素的时钟精度足够高，可以应用本文档。 本文档的范围是考虑电路到IP媒体网关中的去抖动缓冲器使用，例如NGN/IMS环境中的住宅、接入或中继网关。 电路的概念涉及PSTN模拟线路或ISDN 1x64承载信道。 本文档的当前版本包含V.152传输、回声消除器测试和去抖动缓冲器测试的额外去抖动缓冲器要求。 语音传输中的回声消除器和去抖动缓冲器的要求不在本文档范围内。这些要求在ETSI ES 202 718 [i.27]中涵盖。 本文档适用于： a) 适用于： a1) 电路到IP媒体网关和具有网关互通功能的通信服务，操作在同步字节流级别，例如： 服务“语音-over-IP”（VoIP）带或不带静音抑制； 服务“语音频带数据-over-IP”（VBDoIP）；和 服务“电路模式数据-over-IP”（CMDoIP）； a2) IP到IP媒体网关，用于两个IP域之间的专用互通服务，例如： 服务“两个IP域之间的IPDV减少”，具有不同的服务等级（GoS），如建议ITU-T G.799.3 [i.22]所述； 服务“两个RTP域之间的RTP IPDV减少”，可能是“RTP传输转换器”拓扑的主题（见IETF RFC 5117 [i.23]和建议ITU-T H.248.88 [i.24]）； 但由于本文档的重点是电路到IP网关类型，IP到IP媒体网关基本上不在本文档范围内； 并且： b) 不适用，因为不需要去抖动缓冲器： b1) 电路到IP媒体网关和具有网关互通功能的通信服务，操作在单个数据包作为原子单位的级别（即异步数据包流），例如： 服务“传真-over-IP”（FoIP）根据[i.7]； 服务“文本-over-IP”（ToIP）根据[i.25]；和 服务“数据-over-IP”（MoIP）根据[i.26]； b2) IP到IP媒体网关一般。 此外，本文档包含关于语音频带数据（VBD）和64 kbit/s透明数据服务的媒体网关（MGWs）的传输要求。
Speech and multimedia Transmission Quality (STQ); Procedures for the identification and selection of common modes of de-jitter buffers and echo cancellers
De-jitter buffers and echo cancellers have a major effect on voice and data transmission quality in telecommunication networks. They affect the three service categories of PSTN/ISDN voice, voiceband data (due to PSTN modem and fax calls), and ISDN circuit mode data. Since the requirements for the settings of de-jitter buffers differ for different services, the present document describes the activation and mode switching procedures of de-jitter buffers and echo cancellers, including the requirement for in-band tone activating and other control mechanisms. It is assumed that the clock accuracy of all elements involved is sufficiently high for application of the present document. The scope of the present document is considering de-jitter buffer usage in circuit-to-IP media gateways, such as residential, access or trunking gateways in context of NGN/IMS. The notion of circuit relates to a PSTN analog line or an ISDN 1x64 bearer channel. The current version of the present document contains additional de-Jitter Buffer requirements for the transmission of V.152, Echo Canceller Tests and de-Jitter Buffer Tests. The requirements for Echo Cancellers and de-Jitter Buffers in for speech transmission are out of scope in the present document. These requirements are covered in ETSI ES 202 718 [i.27]. The present document is: a) applicable: a1) to circuit-to-IP media gateways and communication services with a gateway interworking function operating at the level of a synchronous byte-stream, such as: service "voice-over-IP" (VoIP) without or with silence suppression; service "voiceband data-over-IP" (VBDoIP); and service "circuit-mode data-over-IP" (CMDoIP); a2) to IP-to-IP media gateways for dedicated interworking services between two IP domains, such as: service "IPDV reduction between two IP domains" with different Grade of Service (GoS) as e.g. described in [i.22]; service "RTP IPDV reduction between two RTP domains", which may be subject of an "RTP transport translator" topology (see [i.23] and [i.24]); but IP-to-IP media gateways are basically out of scope of the present document due to its focus on circuit-to-IP gateway types; and is: b) not applicable, because de-jitter buffers are not required: b1) to circuit-to-IP media gateways and communication services with a gateway interworking function operating at the level of individual packets as atomic units (i.e. an asynchronous packet-stream), such as: service "facsimile-over-IP" (FoIP) according to [i.7]; service "text-over-IP" (ToIP) according to [i.25]; and service "data-over-IP" (MoIP) according to [i.26]; b2) to IP-to-IP media gateways in general.
Speech and multimedia Transmission Quality (STQ); Procedures for the identification and selection of common modes of de-jitter buffers and echo cancellers (V2.2.1)
去抖动缓冲器和回声消除器对电信网络中的语音和数据传输质量有重大影响。它们影响三个服务类别：PSTN/ISDN语音、语音带数据（由于PSTN调制解调器和传真呼叫）以及ISDN电路模式数据。由于不同服务的去抖动缓冲区设置要求不同，本文件描述了去抖动缓冲器和回声消除器的激活及模式切换程序，包括带内tone激活和其他控制机制的要求。假设涉及的所有元素的时钟精度足够高，可以应用本文件。本文件的范围考虑的是在电路到IP媒体网关（如NGN/IMS环境中的住宅、接入或中继网关）中使用的去抖动缓冲区。电路的概念是指PSTN模拟线路或ISDN 1x64承载通道。本文件的当前版本包含额外的V.152传输的去抖动缓冲区要求、回声消除器测试和去抖动缓冲区测试。用于语音传输的回声消除器和去抖动缓冲区的要求不在本文件范围内。这些要求涵盖在ETSI ES 202 718 [i.27]中。本文件：a) 适用：a1) 适用于在同步字节流级别运行的网关互连功能的电路到IP媒体网关和通信服务，例如："语音-over-IP"（VoIP，有无静默抑制）；"语音带数据-over-IP"（VBDoIP）；"电路模式数据-over-IP"（CMDoIP）；a2) 适用于两个IP域之间的专用互连服务的IP到IP媒体网关，例如：在不同服务等级（GoS）之间的"IPDV减少"（如ITU-T建议G.799.3 [i.22]中所述）；"两个RTP域之间的RTP IPDV减少"，可能属于"RTP传输转换器"拓扑（见IETF RFC 5117 [i.23]和ITU-T H.248.88 [i.24]）；但由于其侧重于电路到IP网关类型，IP到IP媒体网关基本上不在本文件范围内；b) 不适用，因为不需要去抖动缓冲区：b1) 适用于以单个数据包为原子单元（即异步数据包流）运行的网关互连功能的电路到IP媒体网关和通信服务，例如：根据[i.7]的"传真-over-IP"（FoIP）；根据[i.25]的"文本-over-IP"（ToIP）；以及根据[i.26]的"数据-over-IP"（MoIP）；b2) 适用于一般的IP到IP媒体网关。此外，本文件还包含针对语音带数据（VBD）和64 kbit/s透明数据服务的媒体网关（MGW）的传输要求。
Speech and multimedia Transmission Quality (STQ); Procedures for the identification and selection of common modes of de-jitter buffers and echo cancellers
Insignia; Branch of Service, Hat, Garrison Cap and Service Cap, General Specification for
INTERWORKING BETWEEN TELETEX SERVICE AND TELEX SERVICE - GENERAL PRINCIPLES
General This SAE Standard describes lubricating oils meeting the physical@ chemical@ and performance requirements of the American Petroluem Institute (API) SM category and the International Lubricant Standardization and Approval Committee (ILSAC) GF-4 standard. These oils are suitable for the lubrication of spark-ignition engines (gasoline engines). This document supersedes the military's Commercial Item Description (CID) A-A-52039. Intended Use The products described in this document are intended for use in administrative type@ commercial vehicles equipped with spark-ignition@ gasoline consuming engines. Rationale This document was revised from its previous version to bring the performance requirements in harmony with current commercial standards.
Lubricating Oil, Automotive Engine, API Service SJ for Military Administrative Service
This SAE Standard describes lubricating oils meeting the physical, chemical, and performance requirements of the American Petroluem Institute (API) SM category and the International Lubricant Standardization and Approval Committee (ILSAC) GF-4 standard. These oils are suitable for the lubrication of spark-ignition engines (gasoline engines). This document supersedes the military's Commercial Item Description (CID) A-A-52039.
Lubricating Oil, Automotive Engine, API Service SJ for Military Administrative Service
INTERWORKING BETWEEN TELETEX SERVICE AND TELEX SERVICE - GENERAL PRINCIPLES
去抖动缓冲器和回声消除器对电信网络中的语音和数据传输质量有重大影响。它们影响PSTN/ISDN语音、语音带数据（由于PSTN调制解调器和传真呼叫）以及ISDN电路模式数据这三个服务类别。由于不同服务对去抖动缓冲器设置的要求不同，本文件描述了去抖动缓冲器和回声消除器的激活和模式切换程序，包括带内音激活和其他控制机制的要求。 假定所有相关元素的时钟精度足够高，可以应用本文件。 本文件的范围考虑电路到IP媒体网关中的去抖动缓冲器使用，例如NGN/IMS环境中的住宅、接入或中继网关。 电路的概念涉及PSTN模拟线路或ISDN 1x64承载通道。 本文件的当前版本包含V.152传输、回声消除器测试和去抖动缓冲器测试的额外去抖动缓冲器要求。 语音传输中的回声消除器和去抖动缓冲器要求不在本文件范围内。这些要求在ETSI ES 202 718 [i.27]中涵盖。 本文件适用于： a) 适用于电路到IP媒体网关和通信服务，具有在同步字节流级别操作的网关互通功能，例如： a1) 服务“语音over IP”（VoIP）带或不带静音抑制； 服务“语音带数据over IP”（VBDoIP）；以及 服务“电路模式数据over IP”（CMDoIP）； a2) IP到IP媒体网关，用于两个IP域之间的专用互通服务，例如： 服务“两个IP域之间的IPDV减少”，具有不同的服务等级（GoS），如[i.22]中所述； 服务“两个RTP域之间的RTP IPDV减少”，可能是“RTP传输转换器”拓扑的主题（见[i.23]和[i.24]）； 但由于本文件重点在电路到IP网关类型，IP到IP媒体网关基本上不在本文件范围内； 并且不适用，因为去抖动缓冲器不需要： b1) 电路到IP媒体网关和通信服务，具有在单个数据包作为原子单元级别操作的网关互通功能（即异步数据包流），例如： 服务“传真over IP”（FoIP）根据[i.7]； 服务“文本over IP”（ToIP）根据[i.25]；以及 服务“数据over IP”（MoIP）根据[i.26]； b2) IP到IP媒体网关一般。
Speech and multimedia Transmission Quality (STQ); Procedures for the identification and selection of common modes of de-jitter buffers and echo cancellers
General This SAE Standard describes lubricating oils meeting the physical@ chemical@ and performance requirements of the American Petroluem Institute (API) SM category and the International Lubricant Standardization and Approval Committee (ILSAC) GF-4 standard. These oils are suitable for the lubrication of spark-ignition engines (gasoline engines). This document supersedes the military's Commercial Item Description (CID) A-A-52039. Rationale The conversion of the commercial item descriptions (CID) AA-52309 to SAE J2362 in November 1998 was done as an effort to align military needs with commercial manufacturers requirements and suppliers products. It is our belief that the API Engine Oil Licensing and Certification System (EOLCS)@ the American Chemistry Council (ACC) Petroleum Additives Product Approval Code of Practice@ and the International Lubricant Standardization and Approval Committee (ILSAC) provide a robust framework of requirements and oversight to allow the Department of Defense to purchase these products directly@ with the understanding that only products with a formal API license and meeting the most current ILSAC requirements will be procured.
Lubricating Oil@ Automotive Engine@ API Service SM for Military Administrative Service
Factors that mitigate interference from radiolocation and Earth exploration-satellite service/space research service (active) radars to maritime and aeronautical radionavigation radars in the 9.0-9.2 and 9.3-9.5 GHz bands and between Earth exploration-sat
Sharing between the maritime mobile service and the aeronautical radionavigation service in the band 415-526.5 kHz
TELETEX SERVICE Service t閘etex
Public mobile telephone service with aircraft
