call control

例句：

1. 1.The company has implemented a call control system to improve customer service.
   该公司已经实施了一个呼叫控制系统，以提高客户服务。
2. 2. The new software provides a call control feature that allows users to manage their calls more efficiently.
   新的软件提供了一种呼叫控制功能，使用户能够更有效地管理他们的电话。
3. 3. The call control system is designed to prevent unauthorized access to sensitive information.
   呼叫控制系统旨在防止未经授权访问敏感信息。