Jim, KI6ZUM was featured at the MultiMode Digital Voice presentation on October 2, 2017 at Pacificon in San Ramon, CA. Jim K6JM and Don WB5EKU were also part of the presentation.
The presentation was video-recorded and is being edited. A link to the video will be shown here and on various other websites as soon as it becomes available.
In the meantime, you can take a look at the slides here:
MultiMode Digital Voice – Pacificon – Oct 21 2017 – Jim KI6ZUM, Jim K6JM, Don WB5EKU