Features
The Internet Phone features:

• Full duplex support with no mic/speaker feedback and no turn-around delay
• Monitor holster for easy placement of the handset within reach
• Speaker bypass jack
• Works with all major internet telephony software, no reliance on proprietary software

To fully test the ease or use and quality of the system, I sent a unit to my Mother - by far the least wired person that I could think of.

After receiving the handset she actually got started on the installation before I had a chance to give her any guidance.  Much to my surprise, she managed to get it all hooked up with minor assistance from me ;) Mom would like to add that the instructions included in the package are excellent, and answered all of her questions before they became troublesome....

In a nutshell, the installation process is as follows: 

• Plug the mic connector into the mic jack of your sound card
• Insert the dual connector into the speaker output of your soundcard
• Plug your speakers into the bypass jack on the wiring harness, and turn down the speakers to prevent feedback
• Custom tailor the mic/audio settings in the Windows volume control application
• Done!

Now for the big question - how does it work / sound?  I've called people via the internet in the past using a handsfree headset, and I've gotten nothing but grief for the sound quality/feedback/etc. that occurred several times during the conversation.  It was troublesome enough that I rarely call people that way anymore.  The Riparius Internet handset has finally brought internet telephony into maturity.  My test calls both to the second Internet handset as well as normal telephones went exceptionally well - so well that the other party often did not know I was calling via the internet. 

This device gets the 3dRetreat seal of approval - if you've ever been disenchanted by the sound quality of internet phone calls, pick one of these up... You'll be pleasantly surprised by the improvement.