Mirial Softphone is the most advanced software-only client for professional quality videoconferencing in H.323 and SIP environments - the first in its class with HD 720p support.
With Mirial Softphone, a webcam and a laptop or desktop PC every user can immediately start taking advantage from video conferencing and collaborative work, while enjoying an amazing visual experience: the product is the first softphone to support 720p High Definition and H264, thus providing a sharp, clear, outstanding video quality in both encoding and decoding.
Not sure how its going to work on a normal laptop with a DSL or cable based internet connection. But for future - yes we need these steps.
Link : http://www.mirial.com/products/Mirial_HD_720p.html