questions async-sync bridge with JMS

Hi all

SAP recommends using JMS rather than BPM to make async-sync bridge or sync-sync bridge. But how to use it in real life?

For example, I have an async RFC function to call a sync SOAP function and the sync response should be passed to a mail receiver. I know how to use BPM to achieve this scenario. But how should we use JMS or can we use JMS to do the same thing?

Another question: If we use SAP own JMS service to make async-sync scenario, we need a sender JMS adapter and a receiver JMS adapter. Are the sender and receiver connected to the same queue in JMS or different queues?

Thanks!

Regards,

Hui