Operator Connect provided by NTT

The simplest way to enable calling in Microsoft Teams

You have invested in M365 and selected Teams as your main communication and collaboration Application/solution/service. Operator Connect provides seamless, integrated Calling and Audio Conferencing using NTT's high quality and reliable voice backbone. You can now quickly and easily enable user numbers and call plans directly in Microsoft Teams, within the Administration Portal.

To celebrate the success of Operator Connect, NTT are extending our launch promotion. Any new client who procures calling plans through our Operator Connect service is entitled to a 10% discount, for the full 36-month contract duration, providing agreements are in place before the 1st April 2022. In addition to this, any new Operator Connect client can also benefit from the same 10% discount if they wish to purchase supplementary call plans using Direct Routing as a Service (DRaaS). We understand that you often require the joint capability of Operator Connect and DRaaS to achieve your full Cloud Voice requirements, so we’ve enhanced our offer to support this popular demand. Qualifying organizations can benefit from a fully funded Modernize Communications Workshop, supporting the transition to fully integrated voice and the business critical additions, offered by NTT. Contact us to learn more and take advantage of these launch offers.


What you get from Operator Connect with NTT

With Operator Connect, provided by NTT, you will get access to carrier-grade telephony and support services, from a single provider:

Telephony and Conferencing Services

  • User phone numbers in 39 countries
  • Audio Conferencing access numbers in 140 countries
  • A selection of flexible call plans, to meet your requirements
  • 99.99% availability
  • Emergency Call Services

Business Critical Benefits*

  • Compliance recording
  • Dynamic E911
  • Video interoperability
  • Call Queue
  • Support Services

*available features when you select NTT as your chosen Operator.

First-class support

Our length and experience delivering telephony services and being a Microsoft Gold Partner for 10+ years ensures the reliability and experience organizations require for voice services.

NTT Support Services are included and provide ongoing support required for maintenance and upgrades to ensure the best possible experience.

Operator Connect: ease of deployment by NTT



Global coverage with NTT

Delivering the world's most comprehensive telephony coverage with fully regulated Telco compliance, NTT offers full PSTN replacement in 39 countries including Emergency Services support and Dynamic E911 where applicable.


  • Brazil
  • Canada
  • Mexico
  • Puerto Rico
  • USA


  • Australia​
  • Hong Kong​
  • Japan​
  • Malaysia
  • New Zealand
  • Singapore


  • Austria
  • Belgium
  • Croatia
  • Cyprus
  • Czech Republic​
  • Denmark​
  • Estonia
  • Finland​
  • France
  • Germany​
  • Greece
  • Hungary
  • Italy​
  • Ireland​
  • Lithuania
  • Luxembourg​
  • Netherlands​
  • Norway​
  • Poland
  • Portugal​
  • Romania​
  • Slovakia
  • Slovenia
  • South Africa​
  • Spain​
  • Sweden​
  • Switzerland​
  • UK

If you are looking to add Voice services in countries not listed above, NTT supports you in more than 80 countries and offers additional Voice services to add Voice capabilities into Teams.

Please reach out to us today to learn more.



Why select NTT?

N°1 in Data Center

Top 5 Global
IP backbone

Ranked by CAIDA's ASRank

Network Services in
190+ Countries

99,99% Guaranteed
service availability

4.1+ Average MOS*
*Mean Opinion Score

Intelligent Communications
Partner of the Year

Fraud detection and

SBCs and SIP Proxies


Operator Connect provided by NTT, delivering more than Integrated Voice

Cloud Deployment Framework

We use our Cloud Deployment Framework approach, founded on 10+ years' experience in Voice migration, to plan and design your transition to Cloud Collaboration and Communication with Operator Connect, whilst delivering the best possible employee experience.

As one of the first global partners to launch Calling Plans for Teams and over 500 Microsoft certified professionals, we provide an end-to-end service for your users and your IT teams.

Learn more:

Included Support Services

  • We supplement and support internal IT staff knowledge and capabilities
  • We provide a single point of contact, including access to our connected Microsoft support
  • We manage and monitor your calling and meetings environment

These Support services are included within the NTT Operator Connect voice and conferencing plans

Learn more:

Customize and enhance your solution

We offer many additional capabilities to support your full voice and conferencing needs while making sure you only pay for what you use. These include:

Want to learn more about the different possibilities of deploying calling in Microsoft Teams?