Feb 26, 2020 · Like so many other features of HTML5, you need to test whether Canvas is supported in the rendering browser. As of this writing, IE 9.0, 10.0 and 11.0, Firefox 2.0 to
Drawing Text on the Canvas. To draw text on a canvas, the most important property and methods are: font - defines the font properties for the text; fillText(text,x,y) - draws "filled" text on the canvas; strokeText(text,x,y) - draws text on the canvas (no fill)
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This VoIP test measures the quality of the network connection for by simulating a VoIP call using the G.711 (64 Kbps) codec. A SIP ALG firewall test is also performed. The VoIP test supports simulation of voice traffic for any number of lines, along with most popular codec setting and custom payloads.