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Featured services
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Services
View all services and productsLeverage our capabilities to accelerate your business transformation.
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Services
Network Services
Popular Products
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Private 5G
Our turnkey private 5G network enables custom-built solutions that are designed around unique use cases and strategies, and deployed, run and optimized through a full network-as-a-service model.
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Managed Campus Networks
Our Managed Campus Networks services transform campus networks, corporate area networks and interconnected local area networks, and connect smart places and industries.
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Services
Cloud
Popular Products
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Cloud Architecture and Modernization
Discover how to achieve your business goals through cloud modernization practices, that deliver improved agility, reusability and scalability.
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Cloud Optimization
Discover how to maximize operational excellence, business continuity and financial sustainability through our cloud-advanced optimization services.
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Services
Consulting
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Services
Data and Artificial intelligence
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Services
Technology Solutions
Client stories
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Services
Data Center Services
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Services
CX and Design
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Services
Application Services
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Services
Sustainability Services
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Services
Digital Workplace
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Services
Business Process Services
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Insights
Recent Insights
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The Future of Networking in 2025 and Beyond
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Using the cloud to cut costs needs the right approach
When organizations focus on transformation, a move to the cloud can deliver cost savings – but they often need expert advice to help them along their journey
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Make zero trust security work for your organization
Make zero trust security work for your organization across hybrid work environments.
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Discover how we accelerate your business transformation
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About us
CLIENT STORIES
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Liantis
Over time, Liantis – an established HR company in Belgium – had built up data islands and isolated solutions as part of their legacy system.
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Randstad
We ensured that Randstad’s migration to Genesys Cloud CX had no impact on availability, ensuring an exceptional user experience for clients and talent.
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CLIENT STORIES
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Liantis
Over time, Liantis – an established HR company in Belgium – had built up data islands and isolated solutions as part of their legacy system.
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Randstad
We ensured that Randstad’s migration to Genesys Cloud CX had no impact on availability, ensuring an exceptional user experience for clients and talent.
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CLIENT STORIES
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Liantis
Over time, Liantis – an established HR company in Belgium – had built up data islands and isolated solutions as part of their legacy system.
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Randstad
We ensured that Randstad’s migration to Genesys Cloud CX had no impact on availability, ensuring an exceptional user experience for clients and talent.
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- Careers
Speak to our experts
We see an interconnected world where technology brings people, data and things together. For businesses, connection matters more than ever. We strive to help you successfully adapt to the way you work. Let us know how we can help you.
Our Offices
Global headquarters (UK):
2nd Floor, 1 King William Street, London, EC4N 7AR
Tel: +44 330 588 7000
Middle East & Africa headquarters (South Africa):
The Campus, 57 Sloane St, Bryanston, Sandton, 2191, Johannesburg
Tel: +27 11 575 0000
Asia Pacific head office (Singapore):
8 Kallang Avenue, #15-01/09, Aperia Tower 1, Singapore 339509
Asia Pacific e-mail enquiries: ap.ask@global.ntt
Tel: +65 6991 2020
Americas head office (US):
One Penn Plaza, Suite 1820, New York, NY 10001
Tel: +1 212 613 1220
Other Ways to Connect
Careers: If you are looking for jobs and careers, please visit our jobs website
News & Media: Stay up to date with our latest news and media kit at our media relations site
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