You can see the global support of SVG fonts here.
As you can see, only WebKit-based browsers (Chrome, Safari, Opera the most known) support that kind of format. The usage is simple:
@font-face {
font-family: ‘comfortaaregular’;
url(‘comfortaaregular.svg#comfortaaregular’) format(‘svg’);
}
If you plan to support other browsers and agents (like IE's Trident) you will have to add other formats.