CW Hotline Firmware version 1.02:
  Removed link_key
  Increased channels from 6 to 10

CW Hotline Firmware version 1.01:
  Multi channel support
  10 second stuck key timeout
  morse sent at 13WPM in SK mode
  no sending when only 1 in channel

CW Hotline Firmware version 1.00:
  Re-written to support new VBand protocol

CW Hotline Firmware version 0.47:
  Added support for Iambic A mode
  Muted received audio when in speed adjust mode