Minimum requirements of browser or system for webRTC support for Video call

[mahes...@gmail.com]

Hi,

I am using Ubuntu v10.04 LTS on a ARMv7 platform.
I have updated firefox to latest version provided which is v.20.
I have updated chromium browser to latest version provided which is v.10

I want to design a video call application running in the browser on this system.
I have tried flash based video call application, but due to older flash version 10.1, the quality of video call is not satisfactory.
Same application gives better quality on the systems with flash v13 or higher.
Since I cannot update flash further, I want to design HTML5 based video call application.

When I run webRTC test in firefox by visiting "http://iswebrtcready.appear.in/", It says that webRTC is not supported along with following details:

HTML 5 Video element

Video element support

Supported

VP8 Codec

Video en-/decoding

Supported

getUserMedia()

Web camera access

Supported

RTCPeerConnection

Peer to Peer connection

Supported

ICE Connection

NAT traversal

Not Supported

Similarly when this test is run in chromium browser, it shows it does not support last 3 conditions.

What can be the problem? Is it due to lower system specs?
What are the minimum browser versions required to support webRTC?
Is there any workaround such as plugin or something, since I am not able to update browsers further?