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Challenges in a TDM-to-VoIP Migration<br />
© <strong>Sangoma</strong> Technologies<br />
April 2013<br />
• Service Provider View Point<br />
– Capital Expenditure<br />
– Learning Curve<br />
– Potential Service Disruption<br />
– Security<br />
• Customer View Point<br />
– Capital Expenditure<br />
– Learning Curve<br />
– Potential Service Disruption<br />
– Security<br />
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