Teams Phone & Audio Conferencing

Secure and compliant Microsoft Teams PSTN calling for GCC High

Enable seamless calling and collaboration between employees and government contractors in GCCH environments.

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Why choose GCC High?

Enable your GCCH Microsoft Teams Phone License with secure communications

Keep sensitive data within the continental US

Leverage a dedicated government cloud security enclave that uses US-based data centers and is only accessible by employees with US citizenship to ensure your data is always protected, compliant, and stays in the US.

Hands-free, fully managed implementation

Make it easy to collaborate with government contractors using the world’s most popular collaboration solution. Momentum simplifies your path to a Teams Phone system, supporting you through the entire implementation process.

Deploy Teams Phone in weeks, not months

Simplify your path to deploying a GCC High-compliant Teams Phone solution with Momentum. Our team has deep expertise deploying Microsoft Teams solutions for GCC and GCC High government agencies.

Key Differences

GCC vs. GCC High

Microsoft created Government Community Cloud (GCC) and GCC High to enable compliance with federal government information and cybersecurity regulations. Here’s what you need to know:

GCC GCC High
Datacenter Locations
Continental US Only
Continental US Only
Eligibility
Federal agencies, SLG, Eligible Contractors 
(DIB, FFRDC, UARC), & Tribes
Federal Eligible Contractors 
(DIB, FFRDC, UARC)
FedRAMP
High
High
DFARS 252.204-7012
FCI + CMMC L1
CUI/CDI + CMMC L2-3
DoD CC SRG Level
IL2 PA
IL4
NIST SP 800-53/171
ITAR/EAR
X
CJIS Agreement
State
Federal
NERC/FERC
Support
Worldwide & Commercial
US-Based Restricted Personnel Only
Directory
Azure Commercial
Azure Government
What’s included

Get to know your new GCCH Teams Phone solution

Direct Routing is the only way to add Teams Phone to your GCC High environment. That’s why you need the right partner to deploy and support your solution. With Momentum, you get:

  • Compliant PSTN access for your GCC High telephone solution
  • One integrated solution powered by Microsoft Teams Phone
  • Access to a GCC High Provider that can enable compliant audio conferencing
  • Integrations with other M365 GCCH applications
  • Help navigating licensing requirements for your deployment
  • Access to professional services for user management, integrations, and more
How it Works

Deploy fast with an experienced partner

1

Implementation

It all starts with mapping out your needs, users, technology landscape, and other factors impacting your Teams Phone solution.

2

Adoption

Our engineering team designs and configures your solution following Microsoft’s encryption and regulatory requirements for GCC High.

3

Support

You get access to 24/7 priority support, 99.99% uptime guarantee, and an ultra-reliable, geo-redundant global network.

The Momentum difference

Ensure your phone system is GCC High-compliant

Maintain compliance

Stay compliant with government and industry regulations like DFARS, ITAR, NIST-800 171, and NIST-800 53.

High-touch support

Combine best-in-class security with peace of mind  using 24/7 support from one of the leading global experts in network connectivity.

Support collaboration

Enable secure and seamless voice and video communications using the world’s best collaboration platform.

Designed for the DOD

Our cloud security enclave was designed specifically for Department of Defense contractors working with sensitive information.

Carrier-grade network

Connect directly with Microsoft’s infrastructure and maximize uptime using our redundant and sophisticated network.

Add audio conferencing

We’re a certified GCC High Provider, which allows us to add audio conferencing to your Microsoft Teams phone deployment.

Frequently asked questions

What’s the difference between GCC and GCC High?

GCC and GCC High differ based on the regulations they comply with. While most GCC data is processed in the United States, some may be processed globally. In contrast, GCC High is the most secure version and was designed specifically for ITAR and those who handle Covered Defense Information (CDI). All GCC High data must stay within the continental United States.

What license is needed for GCCH Teams Phone?

Deploying a GCCH-compliant Teams Phone solution will require a GCCH E3 license with a Teams Phone addon or GCCH E5.

What level of redundancy and failover do you offer?

Momentum offers reliable, geo-redundant calling with more than 200 points of presence — all backed by our 99.99% service uptime and 24/7 support.

How do I add audio conferencing?

Audio conferencing is only available with Direct Routing. It must be provided by a GCC High Provider like Momentum. This feature requires either a GCC High Tenant license or a DoD Tenant license to enable.

Is GCC High ITAR-compliant?

Yes, GCC High is ITAR compliant. GCC High enables partial or full compliance with 75% of NIST 800-171 controls, including all of their ITAR requirements.

What are the ideal use cases for GCC High?
GCC High is designed for government agencies with high security and compliance requirements. Ideal use cases include: Designated Controlled Unclassified Information (CUI) requiring U.S. Sovereignty (comprising CUI labeled NOFORN, Controlled Defense Information, NASA, Nuclear Information, (FERC/NERC), Export Administration Regulations (EAR), Federal Criminal Justice Information Systems, International Traffic in Arms Regulations (ITAR), and Export Controlled CUI.

Make the switch to a GCCH-compliant Teams Phone solution today

Maximize your investment in 365 by switching to a fully-managed GCCH Teams Phone solution.

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