【A popular service that has attercted the interest of companies and has home users alike is the sending of voice signals over an IP-based network, such as the Internet. The practice of making telephone calls over the internet has had a number of different names, including packet voice, voice over packet, voice over the internet, internet telephone, and Voice over Ip（Voip）. But it appears the industry has settled on the term”Voice ove IP” in reference to the internet protocol, which controls the transfer of data over the internet. There are currently three ways to deliver VoIp to users, the first technique is found at the corporate level. Many companies are offering VoIP systerms that operate over a local area network. These systems involve a fair amount of equipment, such as VoIP servers, special IP-enabled telephones, and routers that can direct telephone calls. Today a large portion of corporate sites have converted their older internal telephone systems to VoIP systems t

通信科技人员职业道德的两重性是指通信科技人员在职业活动中，应遵循（ ）

当代科学技术的发展呈现髙度社会化和综合性，因此通信科技人员在科技活动中应（）。

与人类一般的劳动活动相比，科技活动最突出的特点是（ ），这也是科学的生命力所在。

在通信生产中，应树立全程全网的整体观念，保证通信畅通，要求电信职工加强团结协作和组织纪律，这体现了电信行业的（ ）。

我国开展一切电信工作的根本宗旨是（ ）。