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Featured services
Think beyond the robots
The successful integration of AI and IoT in manufacturing will depend on effective change management, upskilling and rethinking business models.
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Services
Leverage 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 and IT Infrastructure
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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Client stories
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Penske Entertainment and the NTT INDYCAR SERIES
Together with Penske Entertainment, we’re delivering digital innovations for their businesses – including INDYCAR, the sanctioning body of the NTT INDYCAR SERIES – and venues such as the iconic Indianapolis Motor Speedway, home to the Indianapolis 500.
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Using private wireless networks to power IoT environments with Schneider Electric
Our combined capabilities enable a secure, end-to-end digital on-premises platform that supports different industries with the benefits of private 5G.
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Services
Data and Artificial intelligence
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Services
Technology Solutions
Client stories
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Services
Global Data Centers
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Services
Digital Collaboration and CX
Master your GenAI destiny
We’ll help you navigate the complexities and opportunities of GenAI.
Explore GenAI -
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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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Master your GenAI destiny
We’ll help you navigate the complexities and opportunities of GenAI.
Explore GenAI -
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Master your GenAI destiny
We’ll help you navigate the complexities and opportunities of GenAI.
Explore GenAI -
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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Everest Group PEAK Matrix® Assessment
NTT DATA is a Leader and Star Performer in the Everest Group Sustainability Enablement Technology Services PEAK Matrix® Assessment 2024.
Get the Everest report -
- Careers
Overview
Carrier-grade telephony and support services
If you've invested in Microsoft 365 with Teams as your main communication and collaboration tool, you'll benefit from Operator Connect by NTT DATA. Our reliable, high-quality voice backbone enables seamless, integrated calling and audioconferencing. And you can activate Teams user numbers and call plans quickly and easily from our administration portal. We deliver the world's most comprehensive telephony coverage, with fully regulated telco compliance, offering full PTSN replacement in 40 countries, and emergency services support and Dynamic E911, where applicable.
Operator Connect by NTT DATA: ease of deployment
Available with NTT Extend for Microsoft Teams
Extend enterprise-grade connectivity to mobile devices
Delivered with Operator Connect, powered by Tango Networks
Extend your existing telephony solution to mobile users with a single number and contract for a range of profiles in your organization, including frontline workers and temporary employees.
One landline number for calls
Each user will receive a unique business phone number and a unique call plan with cellular and landline calling. This means you can use one number to send and receive calls from your Microsoft Teams client (via your desktop, desk phone and mobile) or registered eSIM mobile devices using the native iOS or Android dialler. We can also support you with number porting and new number ordering.
Fast provisioning and deployment
It’s easy to enable the service through our app. Now available on the Microsoft Teams App Store, it guides users through a step-by-step onboarding process to activate their Teams number on their mobile phones.
Compliance and security
Using the Teams Admin Center, your administrators can apply call control, security and compliance policies. Emergency calls routing (including Dynamic E911 for the US) is also supported. We help ensure your quality of experience through continuous monitoring, backed by 99.99% SLAs.
Supercharge your collaboration with Microsoft Teams
We also offer a wide range of cloud collaboration and communication tools to help you realize the full potential of your entire Teams enterprise hub. This includes Compliance Recording, Attendant Console and more.
Learn more about our Microsoft Collaboration Solutions.
Delivered with Operator Connect, powered by Tango Networks
Extend your existing telephony solution to mobile users with a single number and contract for a range of profiles in your organization, including frontline workers and temporary employees.
One landline number for calls
Each user will receive a unique business phone number and a unique call plan with cellular and landline calling. This means you can use one number to send and receive calls from your Microsoft Teams client (via your desktop, desk phone and mobile) or registered eSIM mobile devices using the native iOS or Android dialler. We can also support you with number porting and new number ordering.
Fast provisioning and deployment
It’s easy to enable the service through our app. Now available on the Microsoft Teams App Store, it guides users through a step-by-step onboarding process to activate their Teams number on their mobile phones.
Compliance and security
Using the Teams Admin Center, your administrators can apply call control, security and compliance policies. Emergency calls routing (including Dynamic E911 for the US) is also supported. We help ensure your quality of experience through continuous monitoring, backed by 99.99% SLAs.
Supercharge your collaboration with Microsoft Teams
We also offer a wide range of cloud collaboration and communication tools to help you realize the full potential of your entire Teams enterprise hub. This includes Compliance Recording, Attendant Console and more.
Learn more about our Microsoft Collaboration Solutions.
Key outcomes
Key outcomes
Global coverage
Benefit from full PSTN replacement in 40 countries and a selection of flexible call plans to meet your business requirements.
Ease of use
Simple and quick to deploy, it can take just minutes to connect your operator and assign phone numbers to users.
Single, expert provider
Get carrier-grade telephony and conferencing access from a single provider, leveraging our wholly-owned global backbone network.
Leading support
As a single point of contact with access to Microsoft support, we manage and monitor your calling and meetings environment and support your in-house capabilities.
Customized solutions
Our broad capabilities support your full voice and conferencing needs, including compliance recording, video interoperability, contact center, call queue and support services.
Guaranteed reliability
As a Microsoft Gold Partner and global network leader, we offer the reliability and experience organizations require for voice services.
Success stories
Partners
Accreditation
Why NTT DATA
1 million+
Cloud Voice and Managed Services users with Microsoft Teams
Number 1
Microsoft Operator Connect partner and top performer for Teams telephony
99.99%
guaranteed service availability
ISO 27001
certified with 29 ISO-certified delivery locations
Insights
Contact us