Initial situation
The customer had the Microsoft Skype for Business telephony solution in place for its two main locations and wanted to add telephony to its new location in Asia.
When the COVID-19 pandemic began in 2020, all teaching activities had to be conducted remotely, and the client chose Microsoft's Teams as the solution to meet this need.
From that point on, he also began using this solution as the primary collaboration tool within his administration. As a result, the solution Skype for Business was used only for “ PSTN ” (external telephone service).
Goal
The customer wanted to migrate its current business phone system to the Microsoft solution Teams Phone System using the Direct Routing. This decision was driven by the fact that Teams is a reliable, modern tool that the organization had already adopted for collaboration purposes.
Implementing this solution via Direct Routing allowed the company to retain its current infrastructure—comprising AudiocodeSBC s and other systems—without having to replace all of its equipment.
He also chose to migrate his old contact center system to the solution LuwareTeams, which is integrated with Microsoft.
One of the client's two Swiss sites was hosted on an Audiocodes Cloudbond 365 infrastructure and the client wanted to take advantage of the project to consolidate all of Switzerland onto a centralised infrastructure to reduce complexity and costs.
Approximately 600 users to be migrated from Skype for Business Teams , including phone service, as well as 3,000 users without phone service.
Concept
Our role in this project was to manage the implementation of Microsoft Teams Direct Routing, to carry out the migration of the two sites in Switzerland, and to implement the telephony system at its site in Asia.
In order to implement the migration of the two Swiss sites, we began with an in-depth analysis of the various existing components within their infrastructure Skype for Business and their current telephone system.
Once all the components had been identified, we proceeded to implement the technical components for MS telephony Teams. The solution was validated through a “ PoC ” (proof of concept) involving test users, followed by a pilot limited to 20 production users.
After receiving formal approval from the client, we planned and implemented the migration in two phases (one phase per site). In addition, at the same time, we added Teams telephony for its site in Asia via a SBC shared service provided by a carrier.
At the end of the project, the old infrastructure of Skype for Business as well as the old call center were dismantled.
Challenges:
The critical step in this project was identifying all the use cases present in the old telephony solution and planning their migration.
In fact, the client did not have a complete inventory of use cases, and it was necessary to conduct an in-depth analysis of the various scenarios to ensure a migration smooth transition with no impact.
Result
Thanks to thorough preparation and active project management, the migration project was completed without any surprises, while meeting all of the client’s requirements (schedule, costs, and quality). All users were successfully migrated without any impact on their daily work.
The migration shift to the Microsoft solution Teams Direct Routing also helped reduce costs by consolidating the SIP Trunk at a single location for Switzerland and reducing the number of servers, some of which had significant maintenance costs.
It also allowed us to review all the use cases and to clarify and document those that were not previously documented.
The implementation of Microsoft Teams telephony has provided the client with a single platform for collaboration and communication within its organization.
The project was a success and the client praised our professionalism and competence.
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