Pros
Work life balance was the best. Nights and weekends were only required towards the very end of a product cycle. The managers always joined the engineers during these periods--great for team solidarity and getting things done. The org chart was rather flat which made it very easy to interact with the people necessary to get work done. Autonomy was first class with lots of opportunities to become a domain expert. At the same time, it was easy to get a very broad experience without being condemned to own a feature forever.
Cons
Dialogic seems to be micromanaging their vision and mission to the point that business priorities and personnel were turning over like crazy. They seemed to lack the vision or the resources to get into a market early. As such, they spent a lot of time playing catch up and missing deals to the more established players. At the same time, established products were being gutted. Things always sounded more promising in the all-hands than they did on the revenue sheet.