how to introduce listen back feature in my site?

I want to introduce something like this on my site. no sure how to start.

does anybody know how can I do this?
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Ray PaseurCommented:
This will show you the technologies they used.  Have a look and see if that helps you get started.

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Ray PaseurCommented:
Let's see... We have been three weeks without comment and now you close the question without any information at all, and give the worst grade anyone can give to a colleague on Experts-Exchange.  Why should we answer your questions if you won't engage in dialog with your colleagues?

Please see the E-E grading guidelines and then explain what I did wrong and what you expected.  I'd be grateful to know what I screwed up!
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