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John Sullivan

Head of Global Voice and Mobility TELSTRA
John Sullivan is Telstra’s Head of Global Voice and Mobility. Based in Singapore, John is responsible for driving Telstra’s worldwide voice strategy as the market transitions from traditional calling to OTT and cloud based services. Prior to this, John was the Regional Head of Asia for Telstra’s voice business leading growth in the Asia region for both voice and mobility services. John has 20 years’ experience in the Telco industry with past roles in operations, sales, marketing and business development spanning both the Voice and Data
segments. He was MD & Country Manager of Telecom NZ in Singapore before joining Telstra.

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