MacMillan said he contacted Microsoft and again worked with it to try to resolve the situation. In February 2008 Microsoft informed Imagineering that it would give it "no more than $27,000" in credit to purchase additional hardware it would need to deploy OCS -- a more complex product than LCS -- as well as the license to deploy it, according to court documents and MacMillan. Imagineering was given seven days to accept or reject the offer, according to court documents.

At that point, MacMillan said, he was frustrated and disappointed at how Microsoft handled the situation.

"They've welched on every deal they put into place ... and then said, 'You paid $70,000, we'll give you $20,000, that will have to be good enough, you can accept it or you can reject it,'" he said. "We had to reject that."

Imagineering still has not successfully implemented a unified communications platform, MacMillan said, and does not have the money to do so. "The $70,000 we spent on this was basically what we had for the project," he said. "It's actually an extraordinary amount of money to us."

Imagineering is seeking a refund from Microsoft for the original amount it paid the company, punitive damages and attorney fees.