The customer had Microsoft's Skype for Business telephony solution in place for its two main sites and wanted to add telephony for its new site in Asia.
When COVID-19 arrived in 2020, all teaching activities had to be carried out remotely and the client chose Microsoft Teams as the solution to meet this need.
From that moment on, he also started to use this solution as a primary collaboration tool within his administration. As a result, the solution Skype for Business solution was only used for the PSTN part (external telephony).
The customer wanted to migrate the current company telephony to the Microsoft solution Teams Phone System via the Direct Routing functionality. This choice was motivated by the fact that Teams is a durable, modern tool that has already been adopted by their organisation for collaboration.
The implementation of this solution via Direct Routing made it possible to keep its current infrastructure of SBC Audiocodes and other systems without having to change all the equipment.
It also chose to migrate its old contact centre system to the Luware solution integrated with Microsoft Teams.
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.
About 600 users to be migrated from Skype for Business to Teams with telephony, and also 3000 users without telephony.
Our role in this project was to manage the implementation of Microsoft telephony Teams Direct Routing , to carry out the migration of the two Swiss sites and to implement the telephony on its site in Asia.
In order to carry out the migration of the two Swiss sites, we started with an in-depth analysis of the different elements existing within their infrastructure Skype for Business and the current telephony system.
Once all the elements had been identified, we proceeded to set up the technical elements for MS telephony Teams. The validation of the solution was carried out in the form of a PoC (proof of concept) with test users followed by a pilot limited to 20 production users.
After formal validation by the customer, we planned and executed the migration in two batches (one batch per site). In addition, in parallel, we added telephony Teams for its site in Asia via a shared SBC with an operator.
At the end of the project, the old infrastructure of Skype for Business infrastructure and the old call centre could be dismantled.
The critical point of this project was the identification of all the use cases present on the old telephony solution and the planning of their migration.
Indeed, the client did not have a complete inventory of use cases and it was necessary to analyse the different scenarios in depth to ensure a smooth and impact-free migration .
Thanks to good preparation and active project management, the migration project was completed without any surprises, while respecting all the client's constraints (planning, costs and quality). All users were successfully migrated without any impact on their daily work.
The migration towards the Microsoft solution Teams Direct Routing has also made it possible to reduce costs by regrouping the SIP Trunk on a single site for Switzerland and by 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 telephony on Microsoft Teams allowed the client to have a single tool for collaboration and communication within their organisation.
The project was a success and the client praised our professionalism and competence.
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