Today Google announced the launch of Voice & Video Chat in Gmail. All the gmail user should install a Gmail Plugin to make this new voice & Video chat work. This plugin will work only in the browsers FF 2.0+, IE 6.0+, Safari 3.0+, and Google Chrome with PCs like Windows XP or Vista, as well as on Macs with OS X 10.4 or later.

Unfortunately, this new features integrated only in Gmail, not yet in Google Talk.  In the Chat section of your Gmail, select the contact you want to call. If they have a camera icon next to their name, you can make a voice or video call to them; just click Video & more. If your friend doesn’t have a camera next to their name in your chat list, you can invite them to download the Gmail voice and video chat plug-in from the Video & more menu in a chat window. Even if your friend doesn’t have a video camera, you can still make a voice call or a 1-way video call.