RemixIconEx.Device.phone

You're seeing just the function phone, go back to RemixIconEx.Device module for more information.
Link to this function

phone(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Device.phone()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M9.366 10.682a10.556 10.556 0 0 0 3.952 3.952l.884-1.238a1 1 0 0 1 1.294-.296 11.422 11.422 0 0 0 4.583 1.364 1 1 0 0 1 .921.997v4.462a1 1 0 0 1-.898.995c-.53.055-1.064.082-1.602.082C9.94 21 3 14.06 3 5.5c0-.538.027-1.072.082-1.602A1 1 0 0 1 4.077 3h4.462a1 1 0 0 1 .997.921A11.422 11.422 0 0 0 10.9 8.504a1 1 0 0 1-.296 1.294l-1.238.884zm-2.522-.657l1.9-1.357A13.41 13.41 0 0 1 7.647 5H5.01c-.006.166-.009.333-.009.5C5 12.956 11.044 19 18.5 19c.167 0 .334-.003.5-.01v-2.637a13.41 13.41 0 0 1-3.668-1.097l-1.357 1.9a12.442 12.442 0 0 1-1.588-.75l-.058-.033a12.556 12.556 0 0 1-4.702-4.702l-.033-.058a12.442 12.442 0 0 1-.75-1.588z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}