Dr. Holger Stoltze, Senior Director Technical Sales and Marketing at Yamaha Unified Communications, is responsible for the field sales engineering efforts.  Previously to taking that role, Stoltze managed the unified communication and installed audio products at Yamaha UC.  Stoltze joined Yamaha from Syntellect, where he held the position of Senior Product Manager.  Holger has a PhD. (Dr. rer. Nat) in Computer Science from the Aachen University of Technology and has presented at numerous industry trade shows and events.