I worked at VPIsystems full-time (More than 8 years)
Incredible depth of knowledge in Operations Research algorithms and GUI development combined with NG/OSS Sales Channels led to adoption by a lot of Tier 1 operators globally. All of us that worked there think fondly about all the places we have traveled around the world.
But the IT departments we sold to just weren't ready to pay for much more than Microsoft Office, let alone the price we were asking for the 'Rolls Royce' of the market.
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