Departmental Council Seine-Saint-Denis
Modernizes its telephony and reduces operating costs
About the customer
The Departmental Council of Seine-Saint-Denis, with nearly 7,000 employees, is a major public employer in the Île-de-France region. Its missions cover a wide range of public services: social assistance, culture, leisure, road maintenance, transport, and education.
Solutions used
- Digital Age Communications
At the time, the annual allocation for middle schools was around 800,000 euros. We brought it down to 150,000 euros. That represents a very, very significant economic gain for the Department.
Challenges
In 2007, the Department faced an aging and highly heterogeneous telephone infrastructure. A central system managed around 3,000 employees, while the remaining 4,000 were distributed across local PBXs, one per site. This setup led to:
- Significant hardware obsolescence
- Complex management of technical skills
- High maintenance costs
- Limited flexibility to adapt to evolving needs
Action
A master plan was developed to modernize the entire telephony system. After approval by General Management and the launch of a public procurement process, the OmniPCX Enterprise solution from Alcatel-Lucent Enterprise was selected. The project was entrusted to Hexatel, a systems integrator recognized for its expertise in ToIP migration.
The deployment spanned approximately ten years, with a gradual migration plan covering several hundred sites. In 2016, the scope expanded to include 130 middle schools, bringing the total number of sites to over 400.
Results
Technical Benefits
- Transition from traditional telephony to a unified ToIP infrastructure
- Consolidation of cabling infrastructure (single IT network)
- Reduced outages and improved system reliability
Financial Benefits
- Operating cost reduction: annual IT functional costs reduced by 4
- Overall savings exceeded initial expectations
User Benefits
- Streamlined technical skills: training focused on a single technology
- Simplified maintenance and operations
- Improved system scalability
Products & Solutions
Resources & Downloads
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