- Rotary control knob on the Audio Interface has three positions for music microphone and off- Can be broadcast using multicast over the network to IP endpoints including Algo speakers and multicast-supported telephones- Line output from the 8301 is also available to bridge audio to legacy analog paging systems- Can be simultaneously broadcast to IP endpoints and legacy infrastructure at the same time if required- Music input from a 3.5mm stereo jack is compatible with an iPod and other sources- Left and right stereo channels are combined into a balanced mono signal compatible with public address (PA) infrastructure