| 单词 | presence technology |
| 释义 | presence technology An application that enables a user to post or advertise his availability status. Pres- ence technology is a feature of instant messaging (IM) systems and some IPBX systems.Through presence technology a user can indicate his availability as online and available for e-mail or IM but unavailable for telephone calls, unavailable for IM or telephone calls, out to lunch, out of the office on business or vacation but returning on a certain date, and so on. See also IM and IPBX. |
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