Using Opus wideband with Acrobits Softphone

This is a very informal demonstration of using Acrobits Softphone's implementation of the Opus wideband codec, using an iPhone 5 and an iPad 2 connected to a local Milkfish SIP switch running on DD-WRT. An Audio Technica ATR2100 was connected to the iPad through USB to provide a wider frequency response than that provided by the internal microphone and it's respective A/D converter.