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"O'Sullivan led the business through the glory years of Unified Communications at Cisco, when millions of IP telephones shipped year after year, with Cisco moving from number 6 in IP Telephony global market to top of the heap. Along the way, he brought WebEx and Tandberg to Cisco as well as many smaller acquisitions."
- Sheila McGee-Smith, NoJitter - View Full Article
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  • Barry O’Sullivan featured on The Big Tech Podcast with Adrian Weckler

      We talk about the life of a startup founder being loaded with pressure and stress. But one of Ireland’s best known technology executives, who went from managing a $5bn division of Cisco to starting and selling his own startup, says that life in a big company was actually far more taxing than running your own business. Barry O’Sullivan spoke to Adrian Weckler about it, and a host of other things, in this week’s podcast. “I never missed any of the kind of trappings of being a senior executive at a company like Cisco,” he says. “I would say the…

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