On the one hand, there is the enterprise platform with JMS for asynchronous messages and EJB Timers.

一方面，企业平台有用于异步消息的JMS和EJB定时器。

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Message Façade receives asynchronous messages from the PBX/ACD (private branch exchange/automated call distributor).

Message Façade 从 PBX/ACD（专用交换机/自动呼叫分配器）接收异步消息。

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When using a message queue product like WebSphere MQ, it is possible to implement asynchronous messages using JMS.

使用像WebSphere MQ这样的消息队列产品时，可以使用JMS来实现同步消息。

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