There were no specific Voice presentations in 2015, 2016, or 2017.
Please view the other pages for related subjects:

TFI Communications Technology Asset Valuation Conference 2017

TFI Communications Technology Asset Valuation Conference 2016

TFI Communications Technology Asset Valuation Conference 2015

TFI Communications Technology Asset Valuation Conference 2014

Transforming the Local Exchange Network [slides] [video]
      Lawrence Vanston, TFI

Outlook for Shutting Down the Legacy Network [Slides] [video]
      Charles Burkhardt, CostQuest
      Bob McKnight, Cost Quest

TFI Communications Technology Asset Valuation Conference 2013

2013 Featured Speaker
     Future of Voice Communications
Daniel Berninger, Founder, Voice Communication Exchange Committee Dan didn’t have slides, but here is a great link to his organization that conveys his message:  http://vcxc.org/