发话机

例句：

1. 1. She uses her phone to communicate with her friends.
   她用她的手机与朋友交流。
2. 2. The police dispatcher is responsible for coordinating the response to emergencies.
   警察调度员负责协调对紧急情况的响应。
3. 3. The call center staff is busy helping customers with their inquiries.
   呼叫中心的员工忙于帮助顾客解答他们的疑问。