right way to connect cable modem, router, adaptor?

Hello,

I am a relatively new Vonage user. My question is about the proper way to connect the networkind devices. The documentation Vonage provides with their hardware says to follow this order:

cable modem -> ata adaptor -> router -> pc's.

Looking through the online documentation on Vonage's website for issues related to poor call quality and/or dropped calls, I found documentation that suggested that the connectiosn should be in this order:

cable modem -> router -> ata adaptor and pc's.

Which is the "right" way?

Thanks,

-Harsh