允许用户在不使用手持美利体育官网首页网址的情况下进行通话的功能，是宽带无线终端的重要特性。提供无需手持即可进行语音通信的便利性。
| 标准号 & 类别 | 标准名称 | 发布 |
|---|---|---|
| ETSI I-ETS 300 302-4 ed.1 (1996-09)-1996 试验标准 |
综合业务数字网（ISDN） 可视电话电信服务 第 4 部分：音频方面 宽带编码和扩音或免提功能 Integrated Services Digital Network (ISDN); Videotelephony teleservice; Part 4: Audio aspects - wideband coding and loudspeaking or handsfree function
电声特性 |
1996-09-01 欧洲电信标准协会 |
| ETSI TS 102 925 V1.2.1 (2018-10)-2018 规范标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对超宽带/全频段免提和会议终端的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for Super-Wideband / Fullband handsfree and conferencing terminals from a QoS perspective as perceived by the user
|
2018-10-01 欧洲电信标准协会 |
| ETSI TS 103 220 V1.1.1 (2014-03)-2014 规范标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对超宽带手持（手机和免提）终端的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for Superwideband handheld (handset and handsfree) terminals from a QoS perspective as perceived by the user
|
2014-03-01 欧洲电信标准协会 |
| ETSI TS 103 738 V1.1.1 (2009-11)-2009 试验 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对窄带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 软电话 |
2009-11-01 欧洲电信标准协会 |
| ETSI TS 103 738 V1.1.2 (2010-09)-2010 试验标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对窄带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2010-09-01 欧洲电信标准协会 |
| ETSI TS 103 738 V1.2.1 (2017-07)-2017 试验标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对窄带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2017-07-01 欧洲电信标准协会 |
| ETSI TS 103 738 V1.3.1 (2018-10)-2018 规范标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对窄带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2018-10-01 欧洲电信标准协会 |
| ETSI TS 103 738 V1.4.1 (2021-10)-2021 试验标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对窄带移动无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband mobile wireless terminals (hands-free) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2021-10-01 欧洲电信标准协会 |
| ETSI TS 103 738-2017 规范标准 |
语音和多媒体传输质量（STQ） 从用户感知的 QoS 角度来看窄带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2017-07-01 欧洲电信标准协会 |
| ETSI TS 103 738-2021 测试标准 |
语音和多媒体传输质量（STQ） 从用户感知的 QoS 角度对窄带移动无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband mobile wireless terminals (hands-free) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2021-10-01 欧洲电信标准协会 |
| ETSI TS 103 740 V1.1.1 (2009-11)-2009 试验标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对宽带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2009-11-01 欧洲电信标准协会 |
| ETSI TS 103 740 V1.1.2 (2010-09)-2010 试验标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对宽带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2010-09-01 欧洲电信标准协会 |
| ETSI TS 103 740 V1.2.1 (2017-07)-2017 试验标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对宽带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2017-07-01 欧洲电信标准协会 |
| ETSI TS 103 740 V1.3.1 (2018-10)-2018 规范标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对宽带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2018-10-01 欧洲电信标准协会 |
| ETSI TS 103 740 V1.4.1 (2021-10)-2021 试验标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对宽带移动无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband mobile wireless terminals (hands-free) from a QoS perspective as perceived by the user
无线终端 |
2021-10-01 欧洲电信标准协会 |
| ETSI TS 103 740-2017 规范标准 |
语音和多媒体传输质量（STQ） 从用户感知的QoS角度对宽带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 语音传输性能 |
2017-07-01 欧洲电信标准协会 |
| ETSI TS 103 740-2018 试验 |
语音和多媒体传输质量（STQ）；从用户感知的 QoS 角度来看 宽带无线终端（免提）的传输要求 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handsfree) from a QoS perspective as perceived by the user
无线终端 |
2018-10-01 欧洲电信标准协会 |
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