求翻译：现在的企业事业单位中，内部员工需要沟通，但是有的时候会因为单位的特殊性（军队单位、金融单位）不方便使用外部的网络，或者因为公司的业务不需要连接因特网或者仅能访问部分网站。这样的情况下，当公司内部需要进行交流或者传输文件时，就需要一款局域网内部的即时通信工具。是什么意思？

The enterprises and institutions, the internal staff need to communicate, but sometimes because of the special units (military units, financial institutions) is not convenient to use an external network, or because the company's business does not need to connect to the Internet or access only part o

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In the present business and enterprise unit, the internal staff needs to communicate, but sometimes can because unit's particularity (army unit, financial unit) use exterior network not conveniently, or because company's service does not need to connect the Internet or only can visit the partial web

Now in enterprises and institutions, internal employee communication, but sometimes because the particularities of the unit (unit, finance unit in the army) is not accessible outside of the network, or because the company's business does not need to connect to the Internet, or can only access some s

正在翻译，请等待...