Greg Baltzer is a Amazon Corporate Partnerships at Amazon. He possess expertise in sip trunking, mobile devices, start ups, telecommunications, product marketing and 17 more skills. Colleagues describe him as "Greg had an accurate and realistic grasp of the marketplace and its dynamics that was orders of magnitude more comprehensive and accurate than any other. He also had fantastic people and team skills and I always felt I was contributing, and protected from the vagaries and whims of the larger environment. I would help Greg again in a second."