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Making the Transition to an All-IP Network

In March of this year, AudioCodes published a whitepaper, “4 Key Points to a Successful PSTN to All-IP Transformation”. The paper highlights the changes impacting the business voice services market, specifically the move from TDM (Time Division MultiPlexing) networks to IP, and how businesses making this transition must account for PSTN (Public Switched Telephone Network) infrastructure reaching it’s end of life. The move is complex, including the migration of the core network to IP, and the introduction new equipment and services. One clear takeaway is the importance of testing to this transition.

Some relevant details to consider from the report include:

  • SIP Trunks are predicted to more than double in the next 5 years.
  • The number of PSTN lines are expected to decrease by 33%.
  • The number of TDM Switches will remain unchanged, increasing the cost per PSTN user.

These statistics highlight the necessity for the move to IP as the primary method for voice. Other benefits to PSTN migration discussed in the article include reduced real-estate footprints, power consumption, and maintenance costs, all while offering potentially new revenue streams via services such as UC (Unified Communications) cloud services.

Business customers in particular must receive significant attention during the migration to All-IP because of their existing and potential revenue streams as well as their overall sensitivity to disruptions. This puts focus on the importance of performance, scale and conformance testing to ensure a successful migration and minimal disruptions to business customers.

The PSTN to All IP transformation performed by Deutsche Telekom in Macedonia is discussed as an example of a successful PSTN migration and some of the challenges faced. There are five key points highlighted as being crucial during the migration process:

  • Covering Any Deployment Option
  • Avoiding Customer Churn
  • Minimizing Migration Cost
  • Optimizing Migration Time
  • Enabling Future Cloud Services

Finally, the paper notes the ability to offer new revenue streams by offering cloud services. The Infonetics report that is referenced indicates that the market size for cloud services, including hosted PBX and UC, is expected to grow by 80% in the coming 5 years. A word of caution is provided, noting that the transformation to an All-IP network will be costly, and that, "[...] the migration of end business customers to cloud-based revenue services may not be possible immediately.”

It is clear that the move to an All-IP network is the right choice, but as businesses begin to make the switch, it will be critical to test performance, scalability, and conformance to safeguard against any unforeseen conversion issues that could disrupt service.

To learn more about Valid8.com’s flexible performance, scale and conformance testing tools, visit www.valid8.com.

Justin Shariat

Read more posts by this author.

Woburn, MA

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