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TDM vs. IP: getting the ball rolling

TDM vs. IP: getting the ball rolling

The industry is at a crossroads as carriers are migrating from their legacy communications infrastructure to IP-based solutions such as VoIP (Voice over Internet Protocol).

Having built out their NGN platforms the last few years, carriers are beginning to migrate their voice traffic and communications services from TDM to VoIP. In particular, these traditional wholesale providers are adding VoIP ports for overflow or new capacity. Although some providers are removing the TDM entirely and relying solely on the IP connection, the industry as a whole is seeing some resistance.

While VoIP allows for the immediate increase in bandwidth access with unprecedented levels of flexibility and control, there is an internal discrepancy between commercial and engineering teams. For commercial teams, their main concern is quality and overall capacity needed for the interconnect. Since VoIP maintains the same high level of quality afforded by legacy infrastructure, commercial teams do not see the immediate need to switch from their TDM networks. On the other hand, engineering teams understand the value of an IP infrastructure. For example, the converged network infrastructure reduces both the capital and operating expenses previously associated with maintaining, managing, and upgrading multiple networks, while also paving the way for next-generation services.

Despite the discussion, migrating from TDM to IP is more than just deploying a new network – it’s about implementing a future-oriented business strategy.


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About the author:


Product Manager - VoIPLink TM -- Tata Communications

Michael Corso is the Product Manager Product Manager – VoIPLinkTM for Tata Communications. With over a decade of experience in the VoIP industry, Mr. Corso is responsible for overseeing the capabilities, features and strategy for VoIP based interconnects over the Tata Communications voice network. In this capacity he is driving the NGN network integration and facilitates the migration from TDM to VoIP. Mike is also active within industry forums and events and has been the chair of the operations workstream for the i3 Forum over the last two years.

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Director, International Voice Network Engineering
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