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- digital secure voice telephone 数字保密话音电话
- secure voice telephone 保密电话
- Digital Secure Voice Terminal 数字保密话音终端
- digital secure voice system 数字保密话音系统
- Dual-tone multi-frequency (DTMF) signalling was originally designed for telephone signalling over high quality voice telephone lines. 双音多频编码（DTMF）技术最早用于高质量语音电话线路上的电话编码，现广泛用于控制和数据通信系统。
- Digital secure telephone automatic switched network 数字保密电话自动交换网
- If you think the site is still not bad, sponsored site, and method : Call voice telephone access to the phone, and beneath submitted, we will establish a donor list! 如果您觉得本站还算不错，请赞助本站，方法：拨打声讯电话获取卡号，并在下方提交，我们将建立捐赠者名录！
- Hong Kong's businesses and consumers rely heavily on voice telephonic services. 香港的商业活动和消费者非常依赖话音电话服务。
- To cultivate the Market of Voice Telephone Cards 做大语音卡这块蛋糕
- EIA filed a petition to require digital security coding for cordless phones to prevent random dialing that interfered with 911 operations. EIA（电子工业部）提出申请，要求对无绳电话进行数字安全编码，以防止随机拨打造成对"911"应急电话的干扰。
- Fleet Secure Voice Communications 舰队保密话音通信
- High Command Secure Voice Network 高级司令部保密话网
- Integrated Secure Voice Terminal 综合安全电话终端
- Improved Secure Voice Conferencing System 改进的保密电话会议系统
- We entered the field of digital security and the field of videoconference software in 2000.We manufactured from DVS1000 to DVS5000 remote guard system and MTSV serial videoconference software. 本公司以“产品适用，服务实时为经营理念，凭借自身的技术实力及国际间的技术合作，所出品的DVS系列产品、MTSV系列产品。
- Interim Narrow Band Secure Voice 临时窄带保密话音
- Jam Resistant Secure Voice Communications 抗干扰保密话音通信
- "ISDN connections are used to provide a variety of digital services to customers, including digital voice telephone, fax, e-mail, digital video, and access to the Internet." 利用isdn线路提供各种数字服务给消费者,包括数字语音电话、传真、电子邮件、数字视讯以及存取网际网络。
- Primary Pacific Secure Voice Communications 太平洋主要的保密话音通信
- Most of telephone dials use digital number. 大部分电话号码盘都使用数字。
